Search a number
-
+
313155085 = 5711735099
BaseRepresentation
bin10010101010100…
…101111000001101
3210211020221000111
4102222211320031
51120131430320
651024000021
710521526405
oct2252457015
9724227014
10313155085
1115084a061
1288a60011
134cb55789
142d839805
151c75ba5a
hex12aa5e0d

313155085 has 16 divisors (see below), whose sum is σ = 383356800. Its totient is φ = 245519680.

The previous prime is 313155083. The next prime is 313155103. The reversal of 313155085 is 580551313.

It is not a de Polignac number, because 313155085 - 21 = 313155083 is a prime.

It is a super-2 number, since 2×3131550852 = 196132214522714450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313155083) 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, 58866 + ... + 63964.

It is an arithmetic number, because the mean of its divisors is an integer number (23959800).

Almost surely, 2313155085 is an apocalyptic number.

It is an amenable number.

313155085 is a deficient number, since it is larger than the sum of its proper divisors (70201715).

313155085 is a wasteful number, since it uses less digits than its factorization.

313155085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5348.

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 313155085 is about 17696.1884314109. The cubic root of 313155085 is about 679.0782530013.

The spelling of 313155085 in words is "three hundred thirteen million, one hundred fifty-five thousand, eighty-five".

Divisors: 1 5 71 173 355 865 5099 12283 25495 61415 362029 882127 1810145 4410635 62631017 313155085