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57117107 = 127449741
BaseRepresentation
bin1101100111100…
…0100110110011
310222110211221102
43121320212303
5104110221412
65400115015
71262326115
oct331704663
9128424842
1057117107
112a271a23
1217165a6b
13baaaa08
14782b3b5
1550338c2
hex36789b3

57117107 has 4 divisors (see below), whose sum is σ = 57566976. Its totient is φ = 56667240.

The previous prime is 57117103. The next prime is 57117121. The reversal of 57117107 is 70171175.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 57117107 - 22 = 57117103 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57117107.

It is not an unprimeable number, because it can be changed into a prime (57117101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224744 + ... + 224997.

It is an arithmetic number, because the mean of its divisors is an integer number (14391744).

Almost surely, 257117107 is an apocalyptic number.

57117107 is a deficient number, since it is larger than the sum of its proper divisors (449869).

57117107 is a wasteful number, since it uses less digits than its factorization.

57117107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449868.

The product of its (nonzero) digits is 1715, while the sum is 29.

The square root of 57117107 is about 7557.5860564072. The cubic root of 57117107 is about 385.1134921495.

The spelling of 57117107 in words is "fifty-seven million, one hundred seventeen thousand, one hundred seven".

Divisors: 1 127 449741 57117107