Search a number
-
+
57107533 = 720034073
BaseRepresentation
bin1101100111011…
…0010001001101
310222110100210211
43121312101031
5104104420113
65400002421
71262256160
oct331662115
9128410724
1057107533
112a26580a
1217160411
13baa6552
147827ad7
155030b3d
hex367644d

57107533 has 8 divisors (see below), whose sum is σ = 65314368. Its totient is φ = 48912864.

The previous prime is 57107527. The next prime is 57107537. The reversal of 57107533 is 33570175.

It is a happy number.

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

It is not a de Polignac number, because 57107533 - 217 = 56976461 is a prime.

It is a super-2 number, since 2×571075332 = 6522540650692178, which contains 22 as substring.

It is a nialpdrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 57107495 and 57107504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57107537) 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, 11985 + ... + 16057.

It is an arithmetic number, because the mean of its divisors is an integer number (8164296).

Almost surely, 257107533 is an apocalyptic number.

It is an amenable number.

57107533 is a deficient number, since it is larger than the sum of its proper divisors (8206835).

57107533 is a wasteful number, since it uses less digits than its factorization.

57107533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6083.

The product of its (nonzero) digits is 11025, while the sum is 31.

The square root of 57107533 is about 7556.9526265552. The cubic root of 57107533 is about 385.0919733040.

The spelling of 57107533 in words is "fifty-seven million, one hundred seven thousand, five hundred thirty-three".

Divisors: 1 7 2003 4073 14021 28511 8158219 57107533