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268793551 = 13191088233
BaseRepresentation
bin10000000001010…
…111011011001111
3200201210010102201
4100001113123033
51022302343201
642401102331
76442464445
oct2001273317
9621703381
10268793551
111287aa634
12760279a7
13438c2950
14279acb95
15188e7801
hex100576cf

268793551 has 8 divisors (see below), whose sum is σ = 304705520. Its totient is φ = 235058112.

The previous prime is 268793549. The next prime is 268793563. The reversal of 268793551 is 155397862.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 268793551 - 21 = 268793549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268793251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 543870 + ... + 544363.

It is an arithmetic number, because the mean of its divisors is an integer number (38088190).

Almost surely, 2268793551 is an apocalyptic number.

268793551 is a deficient number, since it is larger than the sum of its proper divisors (35911969).

268793551 is a wasteful number, since it uses less digits than its factorization.

268793551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088265.

The product of its digits is 453600, while the sum is 46.

The square root of 268793551 is about 16394.9245499941. The cubic root of 268793551 is about 645.3662971576.

The spelling of 268793551 in words is "two hundred sixty-eight million, seven hundred ninety-three thousand, five hundred fifty-one".

Divisors: 1 13 19 247 1088233 14147029 20676427 268793551