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31067996 = 2241189439
BaseRepresentation
bin111011010000…
…0111101011100
32011110102021112
41312200331130
530423133441
63025521152
7525034151
oct166407534
964412245
1031067996
111659a933
12a4a31b8
13658a13b
1441aa228
152ada4eb
hex1da0f5c

31067996 has 12 divisors (see below), whose sum is σ = 55695360. Its totient is φ = 15155040.

The previous prime is 31067989. The next prime is 31067999. The reversal of 31067996 is 69976013.

It is a happy number.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31067999) 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, 94556 + ... + 94883.

It is an arithmetic number, because the mean of its divisors is an integer number (4641280).

Almost surely, 231067996 is an apocalyptic number.

It is an amenable number.

31067996 is a deficient number, since it is larger than the sum of its proper divisors (24627364).

31067996 is a wasteful number, since it uses less digits than its factorization.

31067996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189484 (or 189482 counting only the distinct ones).

The product of its (nonzero) digits is 61236, while the sum is 41.

The square root of 31067996 is about 5573.8672391796. The cubic root of 31067996 is about 314.3675763536.

The spelling of 31067996 in words is "thirty-one million, sixty-seven thousand, nine hundred ninety-six".

Divisors: 1 2 4 41 82 164 189439 378878 757756 7766999 15533998 31067996