Search a number
-
+
57200053 = 1731311349
BaseRepresentation
bin1101101000110…
…0110110110101
310222122001201111
43122030312311
5104120400203
65401555021
71263123001
oct332146665
9128561644
1057200053
112a319279
12171a5a71
13bb096b1
14784d701
15504d26d
hex368cdb5

57200053 has 16 divisors (see below), whose sum is σ = 62899200. Its totient is φ = 51782400.

The previous prime is 57200047. The next prime is 57200063. The reversal of 57200053 is 35000275.

It is not a de Polignac number, because 57200053 - 213 = 57191861 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57199997 and 57200033.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57200023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163723 + ... + 164071.

It is an arithmetic number, because the mean of its divisors is an integer number (3931200).

Almost surely, 257200053 is an apocalyptic number.

It is an amenable number.

57200053 is a deficient number, since it is larger than the sum of its proper divisors (5699147).

57200053 is a wasteful number, since it uses less digits than its factorization.

57200053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708.

The product of its (nonzero) digits is 1050, while the sum is 22.

The square root of 57200053 is about 7563.0716643438. The cubic root of 57200053 is about 385.2998237929.

The spelling of 57200053 in words is "fifty-seven million, two hundred thousand, fifty-three".

Divisors: 1 17 31 311 349 527 5287 5933 9641 10819 108539 163897 183923 1845163 3364709 57200053