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31829468972 = 2271136766749
BaseRepresentation
bin11101101001001011…
…110010011100101100
310001011020202120000012
4131221023302130230
51010141321001342
622342223552352
72204523010430
oct355113623454
9101136676005
1031829468972
11125539a6164
12620375b6b8
133003402512
14177d3d29c0
15c64553b82
hex7692f272c

31829468972 has 12 divisors (see below), whose sum is σ = 63658938000. Its totient is φ = 13641200976.

The previous prime is 31829468969. The next prime is 31829468977. The reversal of 31829468972 is 27986492813.

It is a happy number.

31829468972 is an admirable number.

It is a hoax number, since the sum of its digits (59) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (31829468977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 568383347 + ... + 568383402.

It is an arithmetic number, because the mean of its divisors is an integer number (5304911500).

Almost surely, 231829468972 is an apocalyptic number.

It is an amenable number.

31829468972 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

31829468972 is a wasteful number, since it uses less digits than its factorization.

31829468972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136766760 (or 1136766758 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 59.

The spelling of 31829468972 in words is "thirty-one billion, eight hundred twenty-nine million, four hundred sixty-eight thousand, nine hundred seventy-two".

Divisors: 1 2 4 7 14 28 1136766749 2273533498 4547066996 7957367243 15914734486 31829468972