Search a number
-
+
316288191 = 3971086901
BaseRepresentation
bin10010110110100…
…010110010111111
3211001011002211110
4102312202302333
51121432210231
651215053103
710560256002
oct2266426277
9731132743
10316288191
11152599aaa
1289b11193
13506b189b
1430013539
151cb7a046
hex12da2cbf

316288191 has 8 divisors (see below), whose sum is σ = 426065584. Its totient is φ = 208684800.

The previous prime is 316288163. The next prime is 316288199. The reversal of 316288191 is 191882613.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 316288191 - 29 = 316287679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (316288199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 543160 + ... + 543741.

It is an arithmetic number, because the mean of its divisors is an integer number (53258198).

Almost surely, 2316288191 is an apocalyptic number.

316288191 is a deficient number, since it is larger than the sum of its proper divisors (109777393).

316288191 is a wasteful number, since it uses less digits than its factorization.

316288191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1087001.

The product of its digits is 20736, while the sum is 39.

The square root of 316288191 is about 17784.4929924921. The cubic root of 316288191 is about 681.3354601876.

The spelling of 316288191 in words is "three hundred sixteen million, two hundred eighty-eight thousand, one hundred ninety-one".

Divisors: 1 3 97 291 1086901 3260703 105429397 316288191