Search a number
-
+
311113055 = 51131182471
BaseRepresentation
bin10010100010110…
…011010101011111
3210200102011212202
4102202303111133
51114121104210
650512122115
710465263101
oct2242632537
9720364782
10311113055
1114a684930
128823633b
134c5bc186
142d467571
151c4a69a5
hex128b355f

311113055 has 16 divisors (see below), whose sum is σ = 420415488. Its totient is φ = 218964000.

The previous prime is 311113037. The next prime is 311113063. The reversal of 311113055 is 550311113.

It is not a de Polignac number, because 311113055 - 28 = 311112799 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, 89531 + ... + 92940.

It is an arithmetic number, because the mean of its divisors is an integer number (26275968).

Almost surely, 2311113055 is an apocalyptic number.

311113055 is a deficient number, since it is larger than the sum of its proper divisors (109302433).

311113055 is a wasteful number, since it uses less digits than its factorization.

311113055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182518.

The product of its (nonzero) digits is 225, while the sum is 20.

The square root of 311113055 is about 17638.3971777483. The cubic root of 311113055 is about 677.5989824652.

Adding to 311113055 its reverse (550311113), we get a palindrome (861424168).

The spelling of 311113055 in words is "three hundred eleven million, one hundred thirteen thousand, fifty-five".

Divisors: 1 5 11 31 55 155 341 1705 182471 912355 2007181 5656601 10035905 28283005 62222611 311113055