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268968972 = 22397311743
BaseRepresentation
bin10000000010000…
…010010000001100
3200202010001001210
4100002002100030
51022324001342
642404534420
76444125046
oct2002022014
9622101053
10268968972
1112890a408
12760b1410
134395474c
1427a16a96
151892e79c
hex1008240c

268968972 has 48 divisors (see below), whose sum is σ = 636959232. Its totient is φ = 88327680.

The previous prime is 268968943. The next prime is 268968977. The reversal of 268968972 is 279869862.

It is not an unprimeable number, because it can be changed into a prime (268968977) 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, 361633 + ... + 362375.

It is an arithmetic number, because the mean of its divisors is an integer number (13269984).

Almost surely, 2268968972 is an apocalyptic number.

It is an amenable number.

268968972 is an abundant number, since it is smaller than the sum of its proper divisors (367990260).

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

268968972 is a wasteful number, since it uses less digits than its factorization.

268968972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1158 (or 1156 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 57.

The square root of 268968972 is about 16400.2735343042. The cubic root of 268968972 is about 645.5066603740.

The spelling of 268968972 in words is "two hundred sixty-eight million, nine hundred sixty-eight thousand, nine hundred seventy-two".

Divisors: 1 2 3 4 6 12 97 194 291 311 388 582 622 743 933 1164 1244 1486 1866 2229 2972 3732 4458 8916 30167 60334 72071 90501 120668 144142 181002 216213 231073 288284 362004 432426 462146 693219 864852 924292 1386438 2772876 22414081 44828162 67242243 89656324 134484486 268968972