Information AboutQuadrillion |
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SHORT SCALE USAGE In Short Scale usage, a quadrillion is equal to a 1 with 15 zeroes, namely: 1,000,000,000,000,000 ( 1015 ) It is a thousand trillion (short scale), i.e. a thousand million million. The SI Prefix for this number is Peta . LONG SCALE USAGE In Long Scale usage, a quadrillion is equal to a 1 with 24 zeroes, namely: 1,000,000,000,000,000,000,000,000 ( 1024 ) It is a thousand sextillion (short scale), The SI prefix for this number is Yotta . While people in the British Isles , Australia and New Zealand traditionally employed the long scale usage, they have largely switched to the short scale usage. PROPERTIES Quadrillion is the lowest natural number with a "q" in its name. A quadrillion has 255 proper divisors. The Divisor Function calculated on a quadrillion is equal to: : and therefore its Abundancy is 499,961,853,010,960, which is almost half of a quadrillion. The divisor function of a quadrillion (and indeed, of all high powers of ten) may be calculated with the formula: : which may be seen by applying the formula for the partial sum of a Geometric Series twice to the sum of the divisors. SI PREFIXES SEE ALSO |
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