Search a number
-
+
57311375 = 531141681
BaseRepresentation
bin1101101010100…
…0000010001111
310222211201102112
43122220002033
5104132431000
65404214235
71264065362
oct332500217
9128751375
1057311375
112a394980
121723a37b
13bb48274
14787c0d9
155071235
hex36a808f

57311375 has 16 divisors (see below), whose sum is σ = 78028704. Its totient is φ = 41680000.

The previous prime is 57311357. The next prime is 57311407.

57311375 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 57311375 - 26 = 57311311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19466 + ... + 22215.

It is an arithmetic number, because the mean of its divisors is an integer number (4876794).

Almost surely, 257311375 is an apocalyptic number.

57311375 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

57311375 is a deficient number, since it is larger than the sum of its proper divisors (20717329).

57311375 is a wasteful number, since it uses less digits than its factorization.

57311375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41707 (or 41697 counting only the distinct ones).

The product of its digits is 11025, while the sum is 32.

The square root of 57311375 is about 7570.4276629527. The cubic root of 57311375 is about 385.5496169853.

The spelling of 57311375 in words is "fifty-seven million, three hundred eleven thousand, three hundred seventy-five".

Divisors: 1 5 11 25 55 125 275 1375 41681 208405 458491 1042025 2292455 5210125 11462275 57311375