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265115968 = 26131931541
BaseRepresentation
bin11111100110101…
…01100101000000
3200110212021201221
433303111211000
51020332202333
642150204424
76366306565
oct1763254500
9613767657
10265115968
11126718607
1274953714
1342c05a70
14272d286c
151841cd2d
hexfcd5940

265115968 has 112 divisors (see below), whose sum is σ = 616752640. Its totient is φ = 111974400.

The previous prime is 265115953. The next prime is 265116001. The reversal of 265115968 is 869511562.

265115968 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 489778 + ... + 490318.

It is an arithmetic number, because the mean of its divisors is an integer number (5506720).

Almost surely, 2265115968 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 265115968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (308376320).

265115968 is an abundant number, since it is smaller than the sum of its proper divisors (351636672).

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

265115968 is a wasteful number, since it uses less digits than its factorization.

265115968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616 (or 606 counting only the distinct ones).

The product of its digits is 129600, while the sum is 43.

The square root of 265115968 is about 16282.3821353019. The cubic root of 265115968 is about 642.4095108927.

The spelling of 265115968 in words is "two hundred sixty-five million, one hundred fifteen thousand, nine hundred sixty-eight".

Divisors: 1 2 4 8 13 16 19 26 31 32 38 52 62 64 76 104 124 152 208 247 248 304 403 416 494 496 541 589 608 806 832 988 992 1082 1178 1216 1612 1976 1984 2164 2356 3224 3952 4328 4712 6448 7033 7657 7904 8656 9424 10279 12896 14066 15314 15808 16771 17312 18848 20558 25792 28132 30628 33542 34624 37696 41116 56264 61256 67084 82232 112528 122512 133627 134168 164464 218023 225056 245024 267254 268336 318649 328928 436046 450112 490048 534508 536672 637298 657856 872092 1069016 1073344 1274596 1744184 2138032 2549192 3488368 4142437 4276064 5098384 6976736 8284874 8552128 10196768 13953472 16569748 20393536 33139496 66278992 132557984 265115968