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57051970 = 2543132679
BaseRepresentation
bin1101100110100…
…0101101000010
310222100112120221
43121220231002
5104101130340
65354453254
71261635163
oct331505502
9128315527
1057051970
112a227a98
121713422a
13ba87181
14781176a
15501e44a
hex3668b42

57051970 has 16 divisors (see below), whose sum is σ = 105082560. Its totient is φ = 22289904.

The previous prime is 57051947. The next prime is 57052027. The reversal of 57051970 is 7915075.

It is a happy 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, 65910 + ... + 66769.

It is an arithmetic number, because the mean of its divisors is an integer number (6567660).

Almost surely, 257051970 is an apocalyptic number.

57051970 is a deficient number, since it is larger than the sum of its proper divisors (48030590).

57051970 is a wasteful number, since it uses less digits than its factorization.

57051970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132729.

The product of its (nonzero) digits is 11025, while the sum is 34.

The square root of 57051970 is about 7553.2754484396. The cubic root of 57051970 is about 384.9670405247.

The spelling of 57051970 in words is "fifty-seven million, fifty-one thousand, nine hundred seventy".

Divisors: 1 2 5 10 43 86 215 430 132679 265358 663395 1326790 5705197 11410394 28525985 57051970