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31675068 = 2232879863
BaseRepresentation
bin111100011010…
…1001010111100
32012121021000200
41320311022330
531102100233
63050523500
7533143065
oct170651274
965537020
1031675068
1116974a47
12a736590
136740559
1442c756c
152baa313
hex1e352bc

31675068 has 18 divisors (see below), whose sum is σ = 80067624. Its totient is φ = 10558344.

The previous prime is 31675067. The next prime is 31675099. The reversal of 31675068 is 86057613.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 879863 = 31675068 / (3 + 1 + 6 + 7 + 5 + 0 + 6 + 8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31675067) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 439896 + ... + 439967.

Almost surely, 231675068 is an apocalyptic number.

It is an amenable number.

31675068 is an abundant number, since it is smaller than the sum of its proper divisors (48392556).

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

31675068 is a wasteful number, since it uses less digits than its factorization.

31675068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 879873 (or 879868 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 31675068 is about 5628.0607672626. The cubic root of 31675068 is about 316.4019746894.

The spelling of 31675068 in words is "thirty-one million, six hundred seventy-five thousand, sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 879863 1759726 2639589 3519452 5279178 7918767 10558356 15837534 31675068