Search a number
-
+
316252231 = 2313750097
BaseRepresentation
bin10010110110011…
…010000001000111
3211001002021111121
4102312122001013
51121430032411
651214214411
710560046111
oct2266320107
9731067447
10316252231
11152574a89
1289ab4407
135069b3c9
14300043b1
151cb6e571
hex12d9a047

316252231 has 4 divisors (see below), whose sum is σ = 330002352. Its totient is φ = 302502112.

The previous prime is 316252201. The next prime is 316252249. The reversal of 316252231 is 132252613.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132252613 = 971363429.

It is a cyclic number.

It is not a de Polignac number, because 316252231 - 25 = 316252199 is a prime.

It is a super-2 number, since 2×3162522312 = 200030947224954722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 316252196 and 316252205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316252201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6875026 + ... + 6875071.

It is an arithmetic number, because the mean of its divisors is an integer number (82500588).

Almost surely, 2316252231 is an apocalyptic number.

316252231 is a deficient number, since it is larger than the sum of its proper divisors (13750121).

316252231 is a wasteful number, since it uses less digits than its factorization.

316252231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13750120.

The product of its digits is 2160, while the sum is 25.

The square root of 316252231 is about 17783.4819706378. The cubic root of 316252231 is about 681.3096380077.

It can be divided in two parts, 31625 and 2231, that added together give a square (33856 = 1842).

The spelling of 316252231 in words is "three hundred sixteen million, two hundred fifty-two thousand, two hundred thirty-one".

Divisors: 1 23 13750097 316252231