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57140927 = 179533527
BaseRepresentation
bin1101100111111…
…0011010111111
310222112001121122
43121332122333
5104112002202
65400421155
71262455424
oct331763277
9128461548
1057140927
112a288908
12171777bb
13bab87cc
147835d4b
15503a9a2
hex367e6bf

57140927 has 8 divisors (see below), whose sum is σ = 60582816. Its totient is φ = 53708032.

The previous prime is 57140911. The next prime is 57140929. The reversal of 57140927 is 72904175.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 57140927 - 24 = 57140911 is a prime.

It is a super-3 number, since 3×571409273 (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57140929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14438 + ... + 17964.

It is an arithmetic number, because the mean of its divisors is an integer number (7572852).

Almost surely, 257140927 is an apocalyptic number.

57140927 is a deficient number, since it is larger than the sum of its proper divisors (3441889).

57140927 is a wasteful number, since it uses less digits than its factorization.

57140927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4497.

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 57140927 is about 7559.1617921566. The cubic root of 57140927 is about 385.1670203535.

The spelling of 57140927 in words is "fifty-seven million, one hundred forty thousand, nine hundred twenty-seven".

Divisors: 1 17 953 3527 16201 59959 3361231 57140927