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57005117 = 134385009
BaseRepresentation
bin1101100101110…
…1010000111101
310222021011022122
43121131100331
5104043130432
65353452325
71261351451
oct331352075
9128234278
1057005117
112a1a5874
12171110a5
13ba6ba50
1477dc661
155010612
hex365d43d

57005117 has 4 divisors (see below), whose sum is σ = 61390140. Its totient is φ = 52620096.

The previous prime is 57005101. The next prime is 57005161. The reversal of 57005117 is 71150075.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9821956 + 47183161 = 3134^2 + 6869^2 .

It is a cyclic number.

It is not a de Polignac number, because 57005117 - 24 = 57005101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57005167) 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, 2192492 + ... + 2192517.

It is an arithmetic number, because the mean of its divisors is an integer number (15347535).

Almost surely, 257005117 is an apocalyptic number.

It is an amenable number.

57005117 is a deficient number, since it is larger than the sum of its proper divisors (4385023).

57005117 is a wasteful number, since it uses less digits than its factorization.

57005117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4385022.

The product of its (nonzero) digits is 1225, while the sum is 26.

The square root of 57005117 is about 7550.1733092691. The cubic root of 57005117 is about 384.8616290289.

The spelling of 57005117 in words is "fifty-seven million, five thousand, one hundred seventeen".

Divisors: 1 13 4385009 57005117