Search a number
-
+
51313092 = 22323185917
BaseRepresentation
bin1100001110111…
…1100111000100
310120112222022220
43003233213010
5101114004332
65031452340
71162103565
oct303574704
9116488286
1051313092
1126a68316
12152270b0
13a827c9c
146b5a16c
154788d2c
hex30ef9c4

51313092 has 24 divisors (see below), whose sum is σ = 124936896. Its totient is φ = 16360608.

The previous prime is 51313081. The next prime is 51313127. The reversal of 51313092 is 29031315.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92683 + ... + 93234.

It is an arithmetic number, because the mean of its divisors is an integer number (5205704).

Almost surely, 251313092 is an apocalyptic number.

It is an amenable number.

51313092 is an abundant number, since it is smaller than the sum of its proper divisors (73623804).

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

51313092 is a wasteful number, since it uses less digits than its factorization.

51313092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185947 (or 185945 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 24.

The square root of 51313092 is about 7163.3157127129. The cubic root of 51313092 is about 371.6003048906.

The spelling of 51313092 in words is "fifty-one million, three hundred thirteen thousand, ninety-two".

Divisors: 1 2 3 4 6 12 23 46 69 92 138 276 185917 371834 557751 743668 1115502 2231004 4276091 8552182 12828273 17104364 25656546 51313092