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313130334 = 231123711657
BaseRepresentation
bin10010101010011…
…111110101011110
3210211012200001210
4102222133311132
51120130132314
651023245250
710521364266
oct2252376536
9724180053
10313130334
11150832500
1288a49826
134cb4742a
142d8307a6
151c754559
hex12a9fd5e

313130334 has 48 divisors (see below), whose sum is σ = 707034384. Its totient is φ = 92315520.

The previous prime is 313130333. The next prime is 313130339. The reversal of 313130334 is 433031313.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 313130334.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313130333) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21034 + ... + 32690.

It is an arithmetic number, because the mean of its divisors is an integer number (14729883).

Almost surely, 2313130334 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 313130334, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (353517192).

313130334 is an abundant number, since it is smaller than the sum of its proper divisors (393904050).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

313130334 is a wasteful number, since it uses less digits than its factorization.

313130334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11721 (or 11710 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 21.

The square root of 313130334 is about 17695.4890862050. The cubic root of 313130334 is about 679.0603616438.

Adding to 313130334 its reverse (433031313), we get a palindrome (746161647).

The spelling of 313130334 in words is "three hundred thirteen million, one hundred thirty thousand, three hundred thirty-four".

Divisors: 1 2 3 6 11 22 33 37 66 74 111 121 222 242 363 407 726 814 1221 2442 4477 8954 11657 13431 23314 26862 34971 69942 128227 256454 384681 431309 769362 862618 1293927 1410497 2587854 2820994 4231491 4744399 8462982 9488798 14233197 28466394 52188389 104376778 156565167 313130334