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313330131 = 32337103307
BaseRepresentation
bin10010101011010…
…000100111010011
3210211120211010200
4102223100213103
51120203031011
651031430243
710523155632
oct2253204723
9724524120
10313330131
11150959624
1288b25383
134cbb735a
142d883519
151c793856
hex12ad09d3

313330131 has 12 divisors (see below), whose sum is σ = 453935352. Its totient is φ = 208264896.

The previous prime is 313330103. The next prime is 313330141. The reversal of 313330131 is 131033313.

It is not a de Polignac number, because 313330131 - 26 = 313330067 is a prime.

It is a super-2 number, since 2×3133301312 = 196351541984954322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (313330141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48621 + ... + 54686.

It is an arithmetic number, because the mean of its divisors is an integer number (37827946).

Almost surely, 2313330131 is an apocalyptic number.

313330131 is a deficient number, since it is larger than the sum of its proper divisors (140605221).

313330131 is a wasteful number, since it uses less digits than its factorization.

313330131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103650 (or 103647 counting only the distinct ones).

The product of its (nonzero) digits is 243, while the sum is 18.

The square root of 313330131 is about 17701.1336077665. The cubic root of 313330131 is about 679.2047587871.

Adding to 313330131 its reverse (131033313), we get a palindrome (444363444).

The spelling of 313330131 in words is "three hundred thirteen million, three hundred thirty thousand, one hundred thirty-one".

Divisors: 1 3 9 337 1011 3033 103307 309921 929763 34814459 104443377 313330131