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31076968 = 2313298817
BaseRepresentation
bin111011010001…
…1001001101000
32011110212120211
41312203021220
530423430333
63030030504
7525102256
oct166431150
964425524
1031076968
11165a664a
12a4a8434
136591250
1441ad5d6
152adcecd
hex1da3268

31076968 has 16 divisors (see below), whose sum is σ = 62751780. Its totient is φ = 14343168.

The previous prime is 31076963. The next prime is 31076971. The reversal of 31076968 is 86967013.

It can be written as a sum of positive squares in 2 ways, for example, as 27227524 + 3849444 = 5218^2 + 1962^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 31076968.

It is not an unprimeable number, because it can be changed into a prime (31076963) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149305 + ... + 149512.

Almost surely, 231076968 is an apocalyptic number.

It is an amenable number.

31076968 is an abundant number, since it is smaller than the sum of its proper divisors (31674812).

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

31076968 is a wasteful number, since it uses less digits than its factorization.

31076968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298836 (or 298832 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 31076968 is about 5574.6720082889. The cubic root of 31076968 is about 314.3978350849.

The spelling of 31076968 in words is "thirty-one million, seventy-six thousand, nine hundred sixty-eight".

Divisors: 1 2 4 8 13 26 52 104 298817 597634 1195268 2390536 3884621 7769242 15538484 31076968