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31044441488 = 247717251429
BaseRepresentation
bin11100111010011001…
…001001010110010000
32222010112121000202012
4130322121021112100
51002034334111423
622132302042052
72146211253524
oct347231112620
988115530665
1031044441488
1112190861415
126024879328
132c09892608
141707043d84
15c1a688078
hex73a649590

31044441488 has 20 divisors (see below), whose sum is σ = 60156638940. Its totient is φ = 15520147584.

The previous prime is 31044441473. The next prime is 31044441497. The reversal of 31044441488 is 88414444013.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7651350784 + 23393090704 = 87472^2 + 152948^2 .

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, 2243 + ... + 249186.

It is an arithmetic number, because the mean of its divisors is an integer number (3007831947).

Almost surely, 231044441488 is an apocalyptic number.

It is an amenable number.

31044441488 is a deficient number, since it is larger than the sum of its proper divisors (29112197452).

31044441488 is a wasteful number, since it uses less digits than its factorization.

31044441488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259154 (or 259148 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 41.

The spelling of 31044441488 in words is "thirty-one billion, forty-four million, four hundred forty-one thousand, four hundred eighty-eight".

Divisors: 1 2 4 8 16 7717 15434 30868 61736 123472 251429 502858 1005716 2011432 4022864 1940277593 3880555186 7761110372 15522220744 31044441488