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268578308 = 221718712111
BaseRepresentation
bin10000000000100…
…010111000000100
3200201101012011202
4100000202320010
51022224001213
642352322032
76440610065
oct2000427004
9621335152
10268578308
11128672949
1275b43318
134384899b
142795456c
15188a3b58
hex10022e04

268578308 has 24 divisors (see below), whose sum is σ = 498161664. Its totient is φ = 126262400.

The previous prime is 268578293. The next prime is 268578329. The reversal of 268578308 is 803875862.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126173 + ... + 128283.

It is an arithmetic number, because the mean of its divisors is an integer number (20756736).

Almost surely, 2268578308 is an apocalyptic number.

It is an amenable number.

268578308 is a deficient number, since it is larger than the sum of its proper divisors (229583356).

268578308 is a wasteful number, since it uses less digits than its factorization.

268578308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4003 (or 4001 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 47.

The square root of 268578308 is about 16388.3589172315. The cubic root of 268578308 is about 645.1939868813.

The spelling of 268578308 in words is "two hundred sixty-eight million, five hundred seventy-eight thousand, three hundred eight".

Divisors: 1 2 4 17 34 68 1871 2111 3742 4222 7484 8444 31807 35887 63614 71774 127228 143548 3949681 7899362 15798724 67144577 134289154 268578308