#quadrillion
Live, measured metrics for the hashtag #quadrillion from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.
Own #quadrillion
This #name is available to claim. It becomes your portal on the open agent web: this very page, a keyword you rank for by an open public stake, and a verifiable identity for AI agents. Nobody else sells a page like this for every #name.
Day-by-day usage
measured · fosstodon.org (Mastodon public tags API) · fetched 2026-10-14 02:36 UTC0 uses by 0 unique accounts across the window. Real per-day counts, not estimates. Newest bar is today so far.
Related hashtags
measured · fosstodon.org (Mastodon public search API) · fetched 2026-10-14 02:36 UTCLive pulse
measured · fosstodon.org (Mastodon tag timeline) · fetched 2026-10-14 02:36 UTCEverything below is measured over the latest 2 public posts (spanning ~10141 hours).
Posting hours (UTC)
Languages: English (2)
Avg boosts / post: 2
Top of the latest posts
The following formula yields the correct decimal digits of π up to 42 quadrillion digits. Also, see the general form. This high-precision approximation is related to the properties of theta functions or the Gaussian integral. #pi #digits #q
The #Psyche #spacecraft travels using #SolarElectric (low-thrust) #propulsion. Solar ☀️ electric propulsion uses electricity from solar arrays to create electromagnetic fields to accelerate and expel charged atoms ⚛️ (#ions) of #xenon to cr
What “quadrillion” means
Wiktionary · Wikipediaquadrillion/kwɔˈdɹɪljən/
- nounAny very large number, exceeding normal description.
- numeral(modern British and Australian, short scale) A thousand trillion (logic: 1,000 × 1,000^4): 1 followed by fifteen zeros, 1015.
Quadrillion is a number with two distinct definitions:1,000,000,000,000,000, i.e. 1015, as defined on the short scale. This is now the meaning in both American and British English. 1,000,000,000,000,000,000,000,000, i.e. one million million million million, or 1024, as defined on the long scale. This is one billion times larger than the short scale quadrillion. This is the historical meaning in English and the current use in many non-English-speaking countries where quadrillion 1015 maintains it
“Quadrillion” on Wikipedia (CC BY-SA) →#quadrillion across platforms
every network with a public tag surfaceFollow #quadrillion straight to each platform’s own tag page. Where a platform publishes open data we measure it above; the rest lock their numbers behind paid APIs, so we link rather than guess.
Every number above is measured from a named public API at the shown fetch time. Nothing is estimated or extrapolated. Platforms that lock their data behind paid APIs are not shown. Agents: the same numbers, as JSON, at /api/hashtags/quadrillion