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268856972 = 22173953779
BaseRepresentation
bin10000000001100…
…110111010001100
3200201220100102122
4100001212322030
51022311410342
642402312112
76443150366
oct2001467214
9621810378
10268856972
1112884324a
1276058638
1343915787
14279c7d36
151890b4d2
hex10066e8c

268856972 has 12 divisors (see below), whose sum is σ = 498176280. Its totient is φ = 126520896.

The previous prime is 268856971. The next prime is 268856977. The reversal of 268856972 is 279658862.

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (268856971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1976822 + ... + 1976957.

It is an arithmetic number, because the mean of its divisors is an integer number (41514690).

Almost surely, 2268856972 is an apocalyptic number.

It is an amenable number.

268856972 is a deficient number, since it is larger than the sum of its proper divisors (229319308).

268856972 is a wasteful number, since it uses less digits than its factorization.

268856972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3953800 (or 3953798 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 53.

The square root of 268856972 is about 16396.8586015737. The cubic root of 268856972 is about 645.4170505544.

The spelling of 268856972 in words is "two hundred sixty-eight million, eight hundred fifty-six thousand, nine hundred seventy-two".

Divisors: 1 2 4 17 34 68 3953779 7907558 15815116 67214243 134428486 268856972