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19832972592 = 243203272
BaseRepresentation
bin10010011110001000…
…110010010100110000
31220012012020101201110
4102132020302110300
5311104220110332
613040001233320
71301323325346
oct223610622460
956165211643
1019832972592
118458217944
123a16032840
131b40bc6654
14d62047996
157b12764cc
hex49e232530

19832972592 has 30 divisors (see below), whose sum is σ = 51237699868. Its totient is φ = 6610665632.

The previous prime is 19832972587. The next prime is 19832972609. The reversal of 19832972592 is 29527923891.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 965533 + ... + 985859.

Almost surely, 219832972592 is an apocalyptic number.

19832972592 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

19832972592 is an abundant number, since it is smaller than the sum of its proper divisors (31404727276).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19832972592 is an frugal number, since it uses more digits than its factorization.

19832972592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40665 (or 20332 counting only the distinct ones).

The product of its digits is 4898880, while the sum is 57.

The spelling of 19832972592 in words is "nineteen billion, eight hundred thirty-two million, nine hundred seventy-two thousand, five hundred ninety-two".

Divisors: 1 2 3 4 6 8 12 16 24 48 20327 40654 60981 81308 121962 162616 243924 325232 487848 975696 413186929 826373858 1239560787 1652747716 2479121574 3305495432 4958243148 6610990864 9916486296 19832972592