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68018196 = 2236199157
BaseRepresentation
bin1000000110111…
…10000000010100
311201222200102110
410003132000110
5114403040241
610425511020
71454100531
oct403360024
9151880373
1068018196
1135438094
121a942470
131112676c
149067d88
155e88816
hex40de014

68018196 has 24 divisors (see below), whose sum is σ = 158982880. Its totient is φ = 22633632.

The previous prime is 68018177. The next prime is 68018219. The reversal of 68018196 is 69181086.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2850 + ... + 12006.

Almost surely, 268018196 is an apocalyptic number.

It is an amenable number.

68018196 is an abundant number, since it is smaller than the sum of its proper divisors (90964684).

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

68018196 is a wasteful number, since it uses less digits than its factorization.

68018196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9783 (or 9781 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 68018196 is about 8247.3144719963. The cubic root of 68018196 is about 408.2019137077.

The spelling of 68018196 in words is "sixty-eight million, eighteen thousand, one hundred ninety-six".

Divisors: 1 2 3 4 6 12 619 1238 1857 2476 3714 7428 9157 18314 27471 36628 54942 109884 5668183 11336366 17004549 22672732 34009098 68018196