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313130272 = 25713293367
BaseRepresentation
bin10010101010011…
…111110100100000
3210211012122222111
4102222133310200
51120130132042
651023245104
710521364150
oct2252376440
9724178874
10313130272
11150832454
1288a49794
134cb473b0
142d830760
151c754517
hex12a9fd20

313130272 has 96 divisors (see below), whose sum is σ = 763402752. Its totient is φ = 123116544.

The previous prime is 313130269. The next prime is 313130273. The reversal of 313130272 is 272031313.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (313130273) 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, 853033 + ... + 853399.

It is an arithmetic number, because the mean of its divisors is an integer number (7952112).

Almost surely, 2313130272 is an apocalyptic number.

313130272 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 313130272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (381701376).

313130272 is an abundant number, since it is smaller than the sum of its proper divisors (450272480).

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

313130272 is a wasteful number, since it uses less digits than its factorization.

313130272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690 (or 682 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 313130272 is about 17695.4873343460. The cubic root of 313130272 is about 679.0603168257.

Adding to 313130272 its reverse (272031313), we get a palindrome (585161585).

The spelling of 313130272 in words is "three hundred thirteen million, one hundred thirty thousand, two hundred seventy-two".

Divisors: 1 2 4 7 8 13 14 16 26 28 32 52 56 91 104 112 182 208 224 293 364 367 416 586 728 734 1172 1456 1468 2051 2344 2569 2912 2936 3809 4102 4688 4771 5138 5872 7618 8204 9376 9542 10276 11744 15236 16408 19084 20552 26663 30472 32816 33397 38168 41104 53326 60944 65632 66794 76336 82208 106652 107531 121888 133588 152672 213304 215062 267176 426608 430124 534352 752717 853216 860248 1068704 1397903 1505434 1720496 2795806 3010868 3440992 5591612 6021736 9785321 11183224 12043472 19570642 22366448 24086944 39141284 44732896 78282568 156565136 313130272