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57105970 = 2523324509
BaseRepresentation
bin1101100111010…
…1111000110010
310222110021122221
43121311320302
5104104342340
65355551254
71262251465
oct331657062
9128407587
1057105970
112a264619
121715b52a
13baa591c
1478272dc
15503044a
hex3675e32

57105970 has 16 divisors (see below), whose sum is σ = 103236120. Its totient is φ = 22743424.

The previous prime is 57105967. The next prime is 57105977. The reversal of 57105970 is 7950175.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 49603849 + 7502121 = 7043^2 + 2739^2 .

It is a super-2 number, since 2×571059702 = 6522183619281800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (57105977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9925 + ... + 14584.

Almost surely, 257105970 is an apocalyptic number.

57105970 is a deficient number, since it is larger than the sum of its proper divisors (46130150).

57105970 is a wasteful number, since it uses less digits than its factorization.

57105970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24749.

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

The square root of 57105970 is about 7556.8492111461. The cubic root of 57105970 is about 385.0884600241.

The spelling of 57105970 in words is "fifty-seven million, one hundred five thousand, nine hundred seventy".

Divisors: 1 2 5 10 233 466 1165 2330 24509 49018 122545 245090 5710597 11421194 28552985 57105970