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57020625 = 335431109
BaseRepresentation
bin1101100110000…
…1000011010001
310222021221121000
43121201003101
5104044130000
65354052213
71261444614
oct331410321
9128257530
1057020625
112a206492
121711a069
13ba75b1c
14780417b
155015000
hex36610d1

57020625 has 80 divisors (see below), whose sum is σ = 109964800. Its totient is φ = 29160000.

The previous prime is 57020603. The next prime is 57020659. The reversal of 57020625 is 52602075.

It is not a de Polignac number, because 57020625 - 222 = 52826321 is a prime.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 523071 + ... + 523179.

It is an arithmetic number, because the mean of its divisors is an integer number (1374560).

Almost surely, 257020625 is an apocalyptic number.

It is an amenable number.

57020625 is a deficient number, since it is larger than the sum of its proper divisors (52944175).

57020625 is a wasteful number, since it uses less digits than its factorization.

57020625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169 (or 148 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 57020625 is about 7551.2002357241. The cubic root of 57020625 is about 384.8965258552.

The spelling of 57020625 in words is "fifty-seven million, twenty thousand, six hundred twenty-five".

Divisors: 1 3 5 9 15 25 27 31 45 75 93 109 125 135 155 225 279 327 375 465 545 625 675 775 837 981 1125 1395 1635 1875 2325 2725 2943 3375 3379 3875 4185 4905 5625 6975 8175 10137 11625 13625 14715 16875 16895 19375 20925 24525 30411 34875 40875 50685 58125 68125 73575 84475 91233 104625 122625 152055 174375 204375 253425 367875 422375 456165 523125 613125 760275 1267125 1839375 2111875 2280825 3801375 6335625 11404125 19006875 57020625