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31614057 = 35130099
BaseRepresentation
bin111100010011…
…0010001101001
32012111011100000
41320212101221
531043122212
63045333213
7532500156
oct170462151
965434300
1031614057
1116933122
12a707209
13671b857
1442ad22d
152b971dc
hex1e26469

31614057 has 12 divisors (see below), whose sum is σ = 47356400. Its totient is φ = 21075876.

The previous prime is 31614019. The next prime is 31614061. The reversal of 31614057 is 75041613.

It is not a de Polignac number, because 31614057 - 28 = 31613801 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31614057.

It is not an unprimeable number, because it can be changed into a prime (31614007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64807 + ... + 65292.

Almost surely, 231614057 is an apocalyptic number.

It is an amenable number.

31614057 is a deficient number, since it is larger than the sum of its proper divisors (15742343).

31614057 is an equidigital number, since it uses as much as digits as its factorization.

31614057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130114 (or 130102 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 31614057 is about 5622.6379040447. The cubic root of 31614057 is about 316.1986980060.

The spelling of 31614057 in words is "thirty-one million, six hundred fourteen thousand, fifty-seven".

Divisors: 1 3 9 27 81 243 130099 390297 1170891 3512673 10538019 31614057