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57988975 = 5211210869
BaseRepresentation
bin1101110100110…
…1011101101111
311001010010220211
43131031131233
5104321121400
65430523251
71302620032
oct335153557
9131103824
1057988975
112a807a80
1217506527
13c024805
1479b7019
155156dba
hex374d76f

57988975 has 12 divisors (see below), whose sum is σ = 78443640. Its totient is φ = 42173600.

The previous prime is 57988967. The next prime is 57989017.

57988975 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 57988975 - 23 = 57988967 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 105160 + ... + 105709.

It is an arithmetic number, because the mean of its divisors is an integer number (6536970).

Almost surely, 257988975 is an apocalyptic number.

57988975 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

57988975 is a deficient number, since it is larger than the sum of its proper divisors (20454665).

57988975 is a wasteful number, since it uses less digits than its factorization.

57988975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210890 (or 210885 counting only the distinct ones).

The product of its digits is 6350400, while the sum is 58.

The square root of 57988975 is about 7615.0492447521. The cubic root of 57988975 is about 387.0631358333.

The spelling of 57988975 in words is "fifty-seven million, nine hundred eighty-eight thousand, nine hundred seventy-five".

Divisors: 1 5 11 25 55 275 210869 1054345 2319559 5271725 11597795 57988975