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72080064000 = 293353759101
BaseRepresentation
bin100001100100001001…
…1100111111000000000
320220001101100122021000
41003020103213320000
52140104444022000
653040233532000
75131132302120
oct1031023477000
9226041318230
1072080064000
1128629353a2a
1211b77574000
136a49375259
1436bad92c80
151d1d03b000
hex10c84e7e00

72080064000 has 1280 divisors, whose sum is σ = 312537139200. Its totient is φ = 16035840000.

The previous prime is 72080063989. The next prime is 72080064013. The reversal of 72080064000 is 46008027.

It is a tau number, because it is divible by the number of its divisors (1280).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 713663950 + ... + 713664050.

It is an arithmetic number, because the mean of its divisors is an integer number (244169640).

Almost surely, 272080064000 is an apocalyptic number.

72080064000 is a gapful number since it is divisible by the number (70) 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 72080064000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156268569600).

72080064000 is an abundant number, since it is smaller than the sum of its proper divisors (240457075200).

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

72080064000 is a wasteful number, since it uses less digits than its factorization.

72080064000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209 (or 177 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The spelling of 72080064000 in words is "seventy-two billion, eighty million, sixty-four thousand".