Search a number
-
+
53207208 = 2332738989
BaseRepresentation
bin1100101011111…
…0000010101000
310201010012120100
43022332002220
5102110112313
65140225400
71214153025
oct312760250
9121105510
1053207208
11280413aa
121599b260
13b03c172
1470d054c
154a10173
hex32be0a8

53207208 has 24 divisors (see below), whose sum is σ = 144103050. Its totient is φ = 17735712.

The previous prime is 53207197. The next prime is 53207251. The reversal of 53207208 is 80270235.

It can be written as a sum of positive squares in only one way, i.e., 36216324 + 16990884 = 6018^2 + 4122^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 369423 + ... + 369566.

Almost surely, 253207208 is an apocalyptic number.

It is an amenable number.

53207208 is an abundant number, since it is smaller than the sum of its proper divisors (90895842).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53207208 is a wasteful number, since it uses less digits than its factorization.

53207208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739001 (or 738994 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 53207208 is about 7294.3271108444. The cubic root of 53207208 is about 376.1174561372.

The spelling of 53207208 in words is "fifty-three million, two hundred seven thousand, two hundred eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 738989 1477978 2216967 2955956 4433934 5911912 6650901 8867868 13301802 17735736 26603604 53207208