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315869664 = 25311319649
BaseRepresentation
bin10010110100111…
…100100111100000
3211000100211201110
4102310330213200
51121330312124
651202103320
710553563545
oct2264744740
9730324643
10315869664
11152333610
128994ab40
1350596236
142dd44bcc
151cae6029
hex12d3c9e0

315869664 has 96 divisors (see below), whose sum is σ = 933811200. Its totient is φ = 92620800.

The previous prime is 315869663. The next prime is 315869669. The reversal of 315869664 is 466968513.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (315869663) 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, 27912 + ... + 37560.

It is an arithmetic number, because the mean of its divisors is an integer number (9727200).

Almost surely, 2315869664 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 315869664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (466905600).

315869664 is an abundant number, since it is smaller than the sum of its proper divisors (617941536).

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

315869664 is a wasteful number, since it uses less digits than its factorization.

315869664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9704 (or 9696 counting only the distinct ones).

The product of its digits is 933120, while the sum is 48.

The square root of 315869664 is about 17772.7224701226. The cubic root of 315869664 is about 681.0348027866.

The spelling of 315869664 in words is "three hundred fifteen million, eight hundred sixty-nine thousand, six hundred sixty-four".

Divisors: 1 2 3 4 6 8 11 12 16 22 24 31 32 33 44 48 62 66 88 93 96 124 132 176 186 248 264 341 352 372 496 528 682 744 992 1023 1056 1364 1488 2046 2728 2976 4092 5456 8184 9649 10912 16368 19298 28947 32736 38596 57894 77192 106139 115788 154384 212278 231576 299119 308768 318417 424556 463152 598238 636834 849112 897357 926304 1196476 1273668 1698224 1794714 2392952 2547336 3290309 3396448 3589428 4785904 5094672 6580618 7178856 9571808 9870927 10189344 13161236 14357712 19741854 26322472 28715424 39483708 52644944 78967416 105289888 157934832 315869664