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31442745796 = 22711102086837
BaseRepresentation
bin11101010010001000…
…100011100111000100
310000011022001222112121
4131102020203213010
51003343320331141
622240011055324
72162115633550
oct352210434704
9100138058477
1031442745796
1112375679330
126116141544
132c7125c137
141743cc6860
15c406141d1
hex7522239c4

31442745796 has 24 divisors (see below), whose sum is σ = 68602355136. Its totient is φ = 12250420320.

The previous prime is 31442745793. The next prime is 31442745809. The reversal of 31442745796 is 69754724413.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (31442745793) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51043111 + ... + 51043726.

It is an arithmetic number, because the mean of its divisors is an integer number (2858431464).

Almost surely, 231442745796 is an apocalyptic number.

It is an amenable number.

31442745796 is an abundant number, since it is smaller than the sum of its proper divisors (37159609340).

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

31442745796 is a wasteful number, since it uses less digits than its factorization.

31442745796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102086859 (or 102086857 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 52.

The spelling of 31442745796 in words is "thirty-one billion, four hundred forty-two million, seven hundred forty-five thousand, seven hundred ninety-six".

Divisors: 1 2 4 7 11 14 22 28 44 77 154 308 102086837 204173674 408347348 714607859 1122955207 1429215718 2245910414 2858431436 4491820828 7860686449 15721372898 31442745796