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57864928 = 2511433823
BaseRepresentation
bin1101110010111…
…1001011100000
311000212211202111
43130233023200
5104303134203
65424125104
71301562262
oct334571340
9130784674
1057864928
112a732860
1217466794
13bcb0204
147983b32
15513026d
hex372f2e0

57864928 has 48 divisors (see below), whose sum is σ = 127201536. Its totient is φ = 25683840.

The previous prime is 57864871. The next prime is 57864931. The reversal of 57864928 is 82946875.

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, 13225 + ... + 17047.

It is an arithmetic number, because the mean of its divisors is an integer number (2650032).

Almost surely, 257864928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57864928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63600768).

57864928 is an abundant number, since it is smaller than the sum of its proper divisors (69336608).

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

57864928 is a wasteful number, since it uses less digits than its factorization.

57864928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3887 (or 3879 counting only the distinct ones).

The product of its digits is 967680, while the sum is 49.

The square root of 57864928 is about 7606.9000256346. The cubic root of 57864928 is about 386.7869436897.

The spelling of 57864928 in words is "fifty-seven million, eight hundred sixty-four thousand, nine hundred twenty-eight".

Divisors: 1 2 4 8 11 16 22 32 43 44 86 88 172 176 344 352 473 688 946 1376 1892 3784 3823 7568 7646 15136 15292 30584 42053 61168 84106 122336 164389 168212 328778 336424 657556 672848 1315112 1345696 1808279 2630224 3616558 5260448 7233116 14466232 28932464 57864928