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57272630 = 257972497
BaseRepresentation
bin1101101001111…
…0100100110110
310222202202021112
43122132210312
5104130211010
65403315022
71263544412
oct332364466
9128682245
1057272630
112a368858
121721ba72
13bb3373c
14786bd42
155064a05
hex369e936

57272630 has 16 divisors (see below), whose sum is σ = 104397120. Its totient is φ = 22618752.

The previous prime is 57272627. The next prime is 57272641. The reversal of 57272630 is 3627275.

It is a happy number.

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, 35459 + ... + 37038.

It is an arithmetic number, because the mean of its divisors is an integer number (6524820).

Almost surely, 257272630 is an apocalyptic number.

57272630 is a deficient number, since it is larger than the sum of its proper divisors (47124490).

57272630 is a wasteful number, since it uses less digits than its factorization.

57272630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72583.

The product of its (nonzero) digits is 17640, while the sum is 32.

The square root of 57272630 is about 7567.8682599527. The cubic root of 57272630 is about 385.4627145891.

The spelling of 57272630 in words is "fifty-seven million, two hundred seventy-two thousand, six hundred thirty".

Divisors: 1 2 5 10 79 158 395 790 72497 144994 362485 724970 5727263 11454526 28636315 57272630