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68126924320 = 255713311491013
BaseRepresentation
bin111111011100101011…
…100101111000100000
320111211212211100002021
4333130223211320200
52104010443034240
651144100231224
74631151205420
oct773453457040
9214755740067
1068126924320
112698a966644
121125369b514
13656937cb50
143423d5a480
151b8ae7054a
hexfdcae5e20

68126924320 has 384 divisors, whose sum is σ = 206057779200. Its totient is φ = 20705034240.

The previous prime is 68126924317. The next prime is 68126924339. The reversal of 68126924320 is 2342962186.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 67252134 + ... + 67253146.

It is an arithmetic number, because the mean of its divisors is an integer number (536608800).

Almost surely, 268126924320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68126924320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103028889600).

68126924320 is an abundant number, since it is smaller than the sum of its proper divisors (137930854880).

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

68126924320 is a wasteful number, since it uses less digits than its factorization.

68126924320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1228 (or 1220 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 43.

The spelling of 68126924320 in words is "sixty-eight billion, one hundred twenty-six million, nine hundred twenty-four thousand, three hundred twenty".