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57275939 = 747174091
BaseRepresentation
bin1101101001111…
…1011000100011
310222202220211002
43122133120203
5104130312224
65403342215
71263560150
oct332373043
9128686732
1057275939
112a370296
121722196b
13bb350b6
14786d227
1550659ae
hex369f623

57275939 has 8 divisors (see below), whose sum is σ = 66851328. Its totient is φ = 48048840.

The previous prime is 57275929. The next prime is 57275947. The reversal of 57275939 is 93957275.

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

It is not a de Polignac number, because 57275939 - 216 = 57210403 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57275893 and 57275902.

It is not an unprimeable number, because it can be changed into a prime (57275929) 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, 86717 + ... + 87374.

It is an arithmetic number, because the mean of its divisors is an integer number (8356416).

Almost surely, 257275939 is an apocalyptic number.

57275939 is a deficient number, since it is larger than the sum of its proper divisors (9575389).

57275939 is a wasteful number, since it uses less digits than its factorization.

57275939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174145.

The product of its digits is 595350, while the sum is 47.

The square root of 57275939 is about 7568.0868784654. The cubic root of 57275939 is about 385.4701379811.

The spelling of 57275939 in words is "fifty-seven million, two hundred seventy-five thousand, nine hundred thirty-nine".

Divisors: 1 7 47 329 174091 1218637 8182277 57275939