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72802868 = 2237948023
BaseRepresentation
bin1000101011011…
…10001000110100
312001222202202112
410111232020310
5122114142433
611120230152
71542546155
oct425561064
9161882675
1072802868
1138105966
122046b358
1312110528
14995192c
1565d1348
hex456e234

72802868 has 12 divisors (see below), whose sum is σ = 127743840. Its totient is φ = 36304632.

The previous prime is 72802853. The next prime is 72802879. The reversal of 72802868 is 86820827.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22496 + ... + 25527.

It is an arithmetic number, because the mean of its divisors is an integer number (10645320).

Almost surely, 272802868 is an apocalyptic number.

It is an amenable number.

72802868 is a deficient number, since it is larger than the sum of its proper divisors (54940972).

72802868 is a wasteful number, since it uses less digits than its factorization.

72802868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48406 (or 48404 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 41.

The square root of 72802868 is about 8532.4596688177. The cubic root of 72802868 is about 417.5573788971.

The spelling of 72802868 in words is "seventy-two million, eight hundred two thousand, eight hundred sixty-eight".

Divisors: 1 2 4 379 758 1516 48023 96046 192092 18200717 36401434 72802868