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68889996000 = 2532537461593
BaseRepresentation
bin100000000101000101…
…0011110101011100000
320120211001200101122100
41000022022132223200
52112041314333000
651351515410400
74656105206250
oct1001212365340
9216731611570
1068889996000
11272416746a1
1211427153a00
13665b4a3357
143497431960
151bd2e50a00
hex100a29eae0

68889996000 has 576 divisors, whose sum is σ = 280496151936. Its totient is φ = 15685632000.

The previous prime is 68889995957. The next prime is 68889996001. The reversal of 68889996000 is 69998886.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68889996001) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 116171704 + ... + 116172296.

It is an arithmetic number, because the mean of its divisors is an integer number (486972486).

Almost surely, 268889996000 is an apocalyptic number.

68889996000 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68889996000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140248075968).

68889996000 is an abundant number, since it is smaller than the sum of its proper divisors (211606155936).

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

68889996000 is a wasteful number, since it uses less digits than its factorization.

68889996000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1092 (or 1071 counting only the distinct ones).

The product of its (nonzero) digits is 13436928, while the sum is 63.

The spelling of 68889996000 in words is "sixty-eight billion, eight hundred eighty-nine million, nine hundred ninety-six thousand".