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57400475 = 5211208729
BaseRepresentation
bin1101101011110…
…1110010011011
311000000020122112
43122331302123
5104143303400
65410142535
71264616216
oct332756233
9130006575
1057400475
112a445910
1217281a4b
13bb799a2
1478a277d
15508c835
hex36bdc9b

57400475 has 12 divisors (see below), whose sum is σ = 77647560. Its totient is φ = 41745600.

The previous prime is 57400457. The next prime is 57400477.

57400475 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 57400475 - 212 = 57396379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57400477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 104090 + ... + 104639.

It is an arithmetic number, because the mean of its divisors is an integer number (6470630).

Almost surely, 257400475 is an apocalyptic number.

57400475 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

57400475 is a deficient number, since it is larger than the sum of its proper divisors (20247085).

57400475 is a wasteful number, since it uses less digits than its factorization.

57400475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208750 (or 208745 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 32.

The square root of 57400475 is about 7576.3101177288. The cubic root of 57400475 is about 385.7493137240.

It can be divided in two parts, 57400 and 475, that added together give a palindrome (57875).

The spelling of 57400475 in words is "fifty-seven million, four hundred thousand, four hundred seventy-five".

Divisors: 1 5 11 25 55 275 208729 1043645 2296019 5218225 11480095 57400475