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72753952 = 252273561
BaseRepresentation
bin1000101011000…
…10001100100000
312001220021122211
410111202030200
5122111111302
611115211504
71542253435
oct425421440
9161807584
1072753952
1138082137
1220446b94
13120c419b
14993bb8c
1565c1ad7
hex4562320

72753952 has 12 divisors (see below), whose sum is σ = 143234406. Its totient is φ = 36376960.

The previous prime is 72753949. The next prime is 72753971. The reversal of 72753952 is 25935727.

It can be written as a sum of positive squares in only one way, i.e., 52359696 + 20394256 = 7236^2 + 4516^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1136749 + ... + 1136812.

Almost surely, 272753952 is an apocalyptic number.

It is an amenable number.

72753952 is a deficient number, since it is larger than the sum of its proper divisors (70480454).

72753952 is a wasteful number, since it uses less digits than its factorization.

72753952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2273571 (or 2273563 counting only the distinct ones).

The product of its digits is 132300, while the sum is 40.

The square root of 72753952 is about 8529.5927218127. The cubic root of 72753952 is about 417.4638394823.

The spelling of 72753952 in words is "seventy-two million, seven hundred fifty-three thousand, nine hundred fifty-two".

Divisors: 1 2 4 8 16 32 2273561 4547122 9094244 18188488 36376976 72753952