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57858428 = 2216079001
BaseRepresentation
bin1101110010110…
…1100101111100
311000212111211202
43130231211330
5104302432203
65424035032
71301534315
oct334554574
9130774752
1057858428
112a728991
1217462a78
13bcaa274
14798160c
15512d388
hex372d97c

57858428 has 12 divisors (see below), whose sum is σ = 101326512. Its totient is φ = 28908000.

The previous prime is 57858419. The next prime is 57858467. The reversal of 57858428 is 82485875.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1928 + ... + 10928.

It is an arithmetic number, because the mean of its divisors is an integer number (8443876).

Almost surely, 257858428 is an apocalyptic number.

It is an amenable number.

57858428 is a deficient number, since it is larger than the sum of its proper divisors (43468084).

57858428 is a wasteful number, since it uses less digits than its factorization.

57858428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10612 (or 10610 counting only the distinct ones).

The product of its digits is 716800, while the sum is 47.

The square root of 57858428 is about 7606.4727699506. The cubic root of 57858428 is about 386.7724604822.

The spelling of 57858428 in words is "fifty-seven million, eight hundred fifty-eight thousand, four hundred twenty-eight".

Divisors: 1 2 4 1607 3214 6428 9001 18002 36004 14464607 28929214 57858428