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57274624 = 28112432
BaseRepresentation
bin1101101001111…
…1000100000000
310222202212000101
43122133010000
5104130241444
65403332144
71263553261
oct332370400
9128685011
1057274624
112a36a300
1217221054
13bb34614
14786c968
1550653d4
hex369f100

57274624 has 81 divisors (see below), whose sum is σ = 128653959. Its totient is φ = 25428480.

The previous prime is 57274621. The next prime is 57274627. The reversal of 57274624 is 42647275.

The square root of 57274624 is 7568.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (57274621) and next prime (57274627).

It is a Duffinian number.

Its product of digits (94080) is a multiple of the sum of its prime divisors (56).

It is not an unprimeable number, because it can be changed into a prime (57274621) by changing a digit.

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 8 ways as a sum of consecutive naturals, for example, 1331947 + ... + 1331989.

Almost surely, 257274624 is an apocalyptic number.

57274624 is the 7568-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57274624

57274624 is an abundant number, since it is smaller than the sum of its proper divisors (71379335).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57274624 is an equidigital number, since it uses as much as digits as its factorization.

57274624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124 (or 56 counting only the distinct ones).

The product of its digits is 94080, while the sum is 37.

The cubic root of 57274624 is about 385.4671879517.

The spelling of 57274624 in words is "fifty-seven million, two hundred seventy-four thousand, six hundred twenty-four".

Divisors: 1 2 4 8 11 16 22 32 43 44 64 86 88 121 128 172 176 242 256 344 352 473 484 688 704 946 968 1376 1408 1849 1892 1936 2752 2816 3698 3784 3872 5203 5504 7396 7568 7744 10406 11008 14792 15136 15488 20339 20812 29584 30272 30976 40678 41624 59168 60544 81356 83248 118336 121088 162712 166496 223729 236672 325424 332992 447458 473344 650848 665984 894916 1301696 1331968 1789832 2603392 3579664 5206784 7159328 14318656 28637312 57274624