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57702972 = 2238997557
BaseRepresentation
bin1101110000011…
…1101000111100
311000120121121010
43130013220330
5104232443342
65420435220
71300316145
oct334075074
9130517533
1057702972
112a632108
12173a8b10
13bc54592
147940acc
1550ec29c
hex3707a3c

57702972 has 48 divisors (see below), whose sum is σ = 137803680. Its totient is φ = 18788352.

The previous prime is 57702971. The next prime is 57702973. The reversal of 57702972 is 27920775.

It is an interprime number because it is at equal distance from previous prime (57702971) and next prime (57702973).

It is a self number, because there is not a number n which added to its sum of digits gives 57702972.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57702971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103318 + ... + 103874.

It is an arithmetic number, because the mean of its divisors is an integer number (2870910).

Almost surely, 257702972 is an apocalyptic number.

It is an amenable number.

57702972 is an abundant number, since it is smaller than the sum of its proper divisors (80100708).

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

57702972 is a wasteful number, since it uses less digits than its factorization.

57702972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750 (or 748 counting only the distinct ones).

The product of its (nonzero) digits is 61740, while the sum is 39.

The square root of 57702972 is about 7596.2472313637. The cubic root of 57702972 is about 386.4257519626.

The spelling of 57702972 in words is "fifty-seven million, seven hundred two thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 12 89 97 178 194 267 291 356 388 534 557 582 1068 1114 1164 1671 2228 3342 6684 8633 17266 25899 34532 49573 51798 54029 99146 103596 108058 148719 162087 198292 216116 297438 324174 594876 648348 4808581 9617162 14425743 19234324 28851486 57702972