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2972164 = 221361937
BaseRepresentation
bin1011010101101000000100
312121000001011
423111220010
51230102124
6143412004
734156126
oct13255004
95530034
102972164
111750038
12bb4004
13800aa0
14575216
153da994
hex2d5a04

2972164 has 24 divisors (see below), whose sum is σ = 5699288. Its totient is φ = 1347840.

The previous prime is 2972159. The next prime is 2972171. The reversal of 2972164 is 4612792.

It can be written as a sum of positive squares in 4 ways, for example, as 412164 + 2560000 = 642^2 + 1600^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2704 + ... + 3640.

22972164 is an apocalyptic number.

It is an amenable number.

2972164 is a deficient number, since it is larger than the sum of its proper divisors (2727124).

2972164 is a wasteful number, since it uses less digits than its factorization.

2972164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015 (or 1013 counting only the distinct ones).

The product of its digits is 6048, while the sum is 31.

The square root of 2972164 is about 1723.9965197181. The cubic root of 2972164 is about 143.7774984571. Note that the first 3 decimals are identical.

It can be divided in two parts, 2972 and 164, that added together give a square (3136 = 562).

The spelling of 2972164 in words is "two million, nine hundred seventy-two thousand, one hundred sixty-four".

Divisors: 1 2 4 13 26 52 61 122 244 793 937 1586 1874 3172 3748 12181 24362 48724 57157 114314 228628 743041 1486082 2972164