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268894220 = 22573535441
BaseRepresentation
bin10000000001110…
…000000000001100
3200201222020112012
4100001300000030
51022314103340
642403200352
76443364110
oct2001600014
9621866465
10268894220
11128869231
12760760b8
134392970a
14279d7740
1518917565
hex1007000c

268894220 has 48 divisors (see below), whose sum is σ = 647293248. Its totient is φ = 91914240.

The previous prime is 268894183. The next prime is 268894237. The reversal of 268894220 is 22498862.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46700 + ... + 52140.

It is an arithmetic number, because the mean of its divisors is an integer number (13485276).

Almost surely, 2268894220 is an apocalyptic number.

268894220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

268894220 is an abundant number, since it is smaller than the sum of its proper divisors (378399028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

268894220 is a wasteful number, since it uses less digits than its factorization.

268894220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5810 (or 5808 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 41.

The square root of 268894220 is about 16397.9943895587. The cubic root of 268894220 is about 645.4468549816.

The spelling of 268894220 in words is "two hundred sixty-eight million, eight hundred ninety-four thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 353 706 1412 1765 2471 3530 4942 5441 7060 9884 10882 12355 21764 24710 27205 38087 49420 54410 76174 108820 152348 190435 380870 761740 1920673 3841346 7682692 9603365 13444711 19206730 26889422 38413460 53778844 67223555 134447110 268894220