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57108238 = 2117973257
BaseRepresentation
bin1101100111011…
…0011100001110
310222110101202221
43121312130032
5104104430423
65400005554
71262261215
oct331663416
9128411687
1057108238
112a2662a0
12171608ba
13baa6975
14782807c
155030e5d
hex367670e

57108238 has 16 divisors (see below), whose sum is σ = 93595824. Its totient is φ = 25917760.

The previous prime is 57108223. The next prime is 57108269. The reversal of 57108238 is 83280175.

It is a super-2 number, since 2×571082382 = 6522701694929288, which contains 22 as substring.

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, 15906 + ... + 19162.

It is an arithmetic number, because the mean of its divisors is an integer number (5849739).

Almost surely, 257108238 is an apocalyptic number.

57108238 is a deficient number, since it is larger than the sum of its proper divisors (36487586).

57108238 is a wasteful number, since it uses less digits than its factorization.

57108238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4067.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 57108238 is about 7556.9992721979. Note that the first 3 decimals coincide. The cubic root of 57108238 is about 385.0935579679.

The spelling of 57108238 in words is "fifty-seven million, one hundred eight thousand, two hundred thirty-eight".

Divisors: 1 2 11 22 797 1594 3257 6514 8767 17534 35827 71654 2595829 5191658 28554119 57108238