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31082996 = 2271278741
BaseRepresentation
bin111011010010…
…0100111110100
32011111011212002
41312210213310
530424123441
63030114432
7525125660
oct166444764
964434762
1031082996
111660012a
12a4aba18
136593c09
1441b18a0
152adeb9b
hex1da49f4

31082996 has 24 divisors (see below), whose sum is σ = 62662656. Its totient is φ = 13214880.

The previous prime is 31082969. The next prime is 31082999. The reversal of 31082996 is 69928013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31082999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 815 + ... + 7926.

It is an arithmetic number, because the mean of its divisors is an integer number (2610944).

Almost surely, 231082996 is an apocalyptic number.

It is an amenable number.

31082996 is an abundant number, since it is smaller than the sum of its proper divisors (31579660).

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

31082996 is a wasteful number, since it uses less digits than its factorization.

31082996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8879 (or 8877 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 31082996 is about 5575.2126416846. The cubic root of 31082996 is about 314.4181616885.

The spelling of 31082996 in words is "thirty-one million, eighty-two thousand, nine hundred ninety-six".

Divisors: 1 2 4 7 14 28 127 254 508 889 1778 3556 8741 17482 34964 61187 122374 244748 1110107 2220214 4440428 7770749 15541498 31082996