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57680532 = 22337135869
BaseRepresentation
bin1101110000001…
…0001010010100
311000112110211000
43130002022110
5104231234112
65420143300
71300163550
oct334021224
9130473730
1057680532
112a617268
1217397b30
13bc472c0
147936860
1550e57dc
hex3702294

57680532 has 96 divisors (see below), whose sum is σ = 184083200. Its totient is φ = 15209856.

The previous prime is 57680489. The next prime is 57680533. The reversal of 57680532 is 23508675.

57680532 is a `hidden beast` number, since 576 + 80 + 5 + 3 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57680533) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6894 + ... + 12762.

Almost surely, 257680532 is an apocalyptic number.

57680532 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57680532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92041600).

57680532 is an abundant number, since it is smaller than the sum of its proper divisors (126402668).

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

57680532 is a wasteful number, since it uses less digits than its factorization.

57680532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5902 (or 5894 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 57680532 is about 7594.7700426017. The cubic root of 57680532 is about 386.3756533404.

The spelling of 57680532 in words is "fifty-seven million, six hundred eighty thousand, five hundred thirty-two".

Divisors: 1 2 3 4 6 7 9 12 13 14 18 21 26 27 28 36 39 42 52 54 63 78 84 91 108 117 126 156 182 189 234 252 273 351 364 378 468 546 702 756 819 1092 1404 1638 2457 3276 4914 5869 9828 11738 17607 23476 35214 41083 52821 70428 76297 82166 105642 123249 152594 158463 164332 211284 228891 246498 305188 316926 369747 457782 492996 534079 633852 686673 739494 915564 1068158 1109241 1373346 1478988 1602237 2060019 2136316 2218482 2746692 3204474 4120038 4436964 4806711 6408948 8240076 9613422 14420133 19226844 28840266 57680532