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68018165200 = 2452367463339
BaseRepresentation
bin111111010110001100…
…101101010111010000
320111120022011210121201
4333112030231113100
52103300122241300
651125213200544
74625360602426
oct772614552720
9214508153551
1068018165200
1126934532277
1211223190154
13654c99053b
143413729116
151b8163a66a
hexfd632d5d0

68018165200 has 60 divisors (see below), whose sum is σ = 163859264320. Its totient is φ = 27133073280.

The previous prime is 68018165161. The next prime is 68018165221. The reversal of 68018165200 is 256181086.

It is a self number, because there is not a number n which added to its sum of digits gives 68018165200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 84870 + ... + 378469.

Almost surely, 268018165200 is an apocalyptic number.

It is an amenable number.

68018165200 is an abundant number, since it is smaller than the sum of its proper divisors (95841099120).

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

68018165200 is a wasteful number, since it uses less digits than its factorization.

68018165200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463724 (or 463713 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 37.

The spelling of 68018165200 in words is "sixty-eight billion, eighteen million, one hundred sixty-five thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 200 367 400 734 1468 1835 2936 3670 5872 7340 9175 14680 18350 29360 36700 73400 146800 463339 926678 1853356 2316695 3706712 4633390 7413424 9266780 11583475 18533560 23166950 37067120 46333900 92667800 170045413 185335600 340090826 680181652 850227065 1360363304 1700454130 2720726608 3400908260 4251135325 6801816520 8502270650 13603633040 17004541300 34009082600 68018165200