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268606863 = 32717923819
BaseRepresentation
bin10000000000101…
…001110110001111
3200201102122100100
4100000221312033
51022230404423
642353102143
76441056250
oct2000516617
9621378310
10268606863
11128692348
1275b57953
1343858995
1427960b27
15188ac343
hex10029d8f

268606863 has 24 divisors (see below), whose sum is σ = 445910400. Its totient is φ = 152625744.

The previous prime is 268606843. The next prime is 268606879. The reversal of 268606863 is 368606862.

It is not a de Polignac number, because 268606863 - 210 = 268605839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268606813) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 633 + ... + 23186.

It is an arithmetic number, because the mean of its divisors is an integer number (18579600).

Almost surely, 2268606863 is an apocalyptic number.

268606863 is a deficient number, since it is larger than the sum of its proper divisors (177303537).

268606863 is a wasteful number, since it uses less digits than its factorization.

268606863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24011 (or 24008 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The square root of 268606863 is about 16389.2300917401. The cubic root of 268606863 is about 645.2168515492.

Subtracting 268606863 from its reverse (368606862), we obtain a palindrome (99999999).

The spelling of 268606863 in words is "two hundred sixty-eight million, six hundred six thousand, eight hundred sixty-three".

Divisors: 1 3 7 9 21 63 179 537 1253 1611 3759 11277 23819 71457 166733 214371 500199 1500597 4263601 12790803 29845207 38372409 89535621 268606863