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57101994 = 23212724979
BaseRepresentation
bin1101100111010…
…0111010101010
310222110002012200
43121310322222
5104104230434
65355521030
71262234055
oct331647252
9128402180
1057101994
112a261634
1217159176
13baa3b81
147825a9c
15502e199
hex3674eaa

57101994 has 24 divisors (see below), whose sum is σ = 124700160. Its totient is φ = 18883368.

The previous prime is 57101981. The next prime is 57102013. The reversal of 57101994 is 49910175.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10204 + ... + 14775.

It is an arithmetic number, because the mean of its divisors is an integer number (5195840).

Almost surely, 257101994 is an apocalyptic number.

57101994 is an abundant number, since it is smaller than the sum of its proper divisors (67598166).

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

57101994 is a wasteful number, since it uses less digits than its factorization.

57101994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25114 (or 25111 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

The square root of 57101994 is about 7556.5861339629. The cubic root of 57101994 is about 385.0795225625.

The spelling of 57101994 in words is "fifty-seven million, one hundred one thousand, nine hundred ninety-four".

Divisors: 1 2 3 6 9 18 127 254 381 762 1143 2286 24979 49958 74937 149874 224811 449622 3172333 6344666 9516999 19033998 28550997 57101994