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313165664 = 2572297197
BaseRepresentation
bin10010101010101…
…000011101100000
3210211021110112022
4102222220131200
51120132300124
651024121012
710521602300
oct2252503540
9724243468
10313165664
11150856aa9
1288a66168
134cb5a536
142d83d600
151c75ec5e
hex12aa8760

313165664 has 144 divisors (see below), whose sum is σ = 760142880. Its totient is φ = 126443520.

The previous prime is 313165661. The next prime is 313165673. The reversal of 313165664 is 466561313.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313165661) 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, 3228464 + ... + 3228560.

It is an arithmetic number, because the mean of its divisors is an integer number (5278770).

Almost surely, 2313165664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 313165664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (380071440).

313165664 is an abundant number, since it is smaller than the sum of its proper divisors (446977216).

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

313165664 is a wasteful number, since it uses less digits than its factorization.

313165664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221 (or 206 counting only the distinct ones).

The product of its digits is 38880, while the sum is 35.

The square root of 313165664 is about 17696.4873350617. The cubic root of 313165664 is about 679.0858997853.

The spelling of 313165664 in words is "three hundred thirteen million, one hundred sixty-five thousand, six hundred sixty-four".

Divisors: 1 2 4 7 8 14 16 28 29 32 49 56 58 71 97 98 112 116 142 194 196 203 224 232 284 388 392 406 464 497 568 679 776 784 812 928 994 1136 1358 1421 1552 1568 1624 1988 2059 2272 2716 2813 2842 3104 3248 3479 3976 4118 4753 5432 5626 5684 6496 6887 6958 7952 8236 9506 10864 11252 11368 13774 13916 14413 15904 16472 19012 19691 21728 22504 22736 27548 27832 28826 32944 38024 39382 45008 45472 48209 55096 55664 57652 65888 76048 78764 90016 96418 100891 110192 111328 115304 137837 152096 157528 192836 199723 201782 220384 230608 275674 315056 337463 385672 399446 403564 461216 551348 630112 674926 771344 798892 807128 1102696 1349852 1398061 1542688 1597784 1614256 2205392 2699704 2796122 3195568 3228512 4410784 5399408 5592244 6391136 9786427 10798816 11184488 19572854 22368976 39145708 44737952 78291416 156582832 313165664