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1372929172 = 22536476081
BaseRepresentation
bin101000111010101…
…0011110010010100
310112200102000202121
41101311103302110
510302432213142
6344122345324
746010463646
oct12165236224
93480360677
101372929172
11644a8a00a
1232395b244
1318b590b34
14d04a6896
15807e8c67
hex51d53c94

1372929172 has 12 divisors (see below), whose sum is σ = 2447958996. Its totient is φ = 673512320.

The previous prime is 1372929167. The next prime is 1372929191. The reversal of 1372929172 is 2719292731.

It can be written as a sum of positive squares in 2 ways, for example, as 505980036 + 866949136 = 22494^2 + 29444^2 .

It is a super-2 number, since 2×13729291722 = 3769869022657211168, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3237829 + ... + 3238252.

It is an arithmetic number, because the mean of its divisors is an integer number (203996583).

Almost surely, 21372929172 is an apocalyptic number.

It is an amenable number.

1372929172 is a deficient number, since it is larger than the sum of its proper divisors (1075029824).

1372929172 is a wasteful number, since it uses less digits than its factorization.

1372929172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6476138 (or 6476136 counting only the distinct ones).

The product of its digits is 95256, while the sum is 43.

The square root of 1372929172 is about 37053.0588750780. The cubic root of 1372929172 is about 1111.4315247734.

The spelling of 1372929172 in words is "one billion, three hundred seventy-two million, nine hundred twenty-nine thousand, one hundred seventy-two".

Divisors: 1 2 4 53 106 212 6476081 12952162 25904324 343232293 686464586 1372929172