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57389212 = 22171994241
BaseRepresentation
bin1101101011101…
…1000010011100
310222222200012101
43122323002130
5104142423322
65410014444
71264541326
oct332730234
9128880171
1057389212
112a438401
1217277424
13bb7481a
14789c616
155089327
hex36bb09c

57389212 has 24 divisors (see below), whose sum is σ = 106898400. Its totient is φ = 26864640.

The previous prime is 57389201. The next prime is 57389237. The reversal of 57389212 is 21298375.

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, 11412 + ... + 15652.

It is an arithmetic number, because the mean of its divisors is an integer number (4454100).

Almost surely, 257389212 is an apocalyptic number.

It is an amenable number.

57389212 is a deficient number, since it is larger than the sum of its proper divisors (49509188).

57389212 is a wasteful number, since it uses less digits than its factorization.

57389212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4461 (or 4459 counting only the distinct ones).

The product of its digits is 30240, while the sum is 37.

The square root of 57389212 is about 7575.5667774761. The cubic root of 57389212 is about 385.7240817683.

The spelling of 57389212 in words is "fifty-seven million, three hundred eighty-nine thousand, two hundred twelve".

Divisors: 1 2 4 17 34 68 199 398 796 3383 4241 6766 8482 13532 16964 72097 144194 288388 843959 1687918 3375836 14347303 28694606 57389212