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31132825404 = 2232594402117
BaseRepresentation
bin11100111111101010…
…010011011100111100
32222100200220101200120
4130333222103130330
51002230000403104
622145140254540
72151333435552
oct347752233474
988320811616
1031132825404
111222673957a
12604a3a1450
132c21c99aa5
141714a8dbd2
15c232e5cd9
hex73fa9373c

31132825404 has 12 divisors (see below), whose sum is σ = 72643259304. Its totient is φ = 10377608464.

The previous prime is 31132825357. The next prime is 31132825447. The reversal of 31132825404 is 40452823113.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1297201047 + ... + 1297201070.

It is an arithmetic number, because the mean of its divisors is an integer number (6053604942).

Almost surely, 231132825404 is an apocalyptic number.

It is an amenable number.

31132825404 is an abundant number, since it is smaller than the sum of its proper divisors (41510433900).

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

31132825404 is a wasteful number, since it uses less digits than its factorization.

31132825404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2594402124 (or 2594402122 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The spelling of 31132825404 in words is "thirty-one billion, one hundred thirty-two million, eight hundred twenty-five thousand, four hundred four".

Divisors: 1 2 3 4 6 12 2594402117 5188804234 7783206351 10377608468 15566412702 31132825404