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68308426996320 = 25357109186512743
BaseRepresentation
bin11111000100000010010111…
…00001101011101001100000
322221212012222201120201022110
433202001023201223221200
532423131124302340240
6401140242543235320
720250056333240610
oct1742011341535140
9287765881521273
1068308426996320
111a846494273705
1277b2769ba8b40
132c165c31186b4
1412c22073b2a40
157d6cd3e19c80
hex3e204b86ba60

68308426996320 has 192 divisors, whose sum is σ = 248166396656640. Its totient is φ = 15470112872448.

The previous prime is 68308426996307. The next prime is 68308426996331. The reversal of 68308426996320 is 2369962480386.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 92890132 + ... + 93622611.

It is an arithmetic number, because the mean of its divisors is an integer number (1292533315920).

Almost surely, 268308426996320 is an apocalyptic number.

68308426996320 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

68308426996320 is an abundant number, since it is smaller than the sum of its proper divisors (179857969660320).

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

68308426996320 is a wasteful number, since it uses less digits than its factorization.

68308426996320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186512877 (or 186512869 counting only the distinct ones).

The product of its (nonzero) digits is 161243136, while the sum is 66.

The spelling of 68308426996320 in words is "sixty-eight trillion, three hundred eight billion, four hundred twenty-six million, nine hundred ninety-six thousand, three hundred twenty".