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72887040000 = 21134541937
BaseRepresentation
bin100001111100001100…
…1111111100000000000
320222010121211021020000
41003320121333200000
52143233040240000
653252302120000
75160131421615
oct1037031774000
9228117737200
1072887040000
1128a02919a45
1212161880000
136b475cb448
14375621650c
151d68ce0000
hex10f867f800

72887040000 has 1200 divisors, whose sum is σ = 294106012200. Its totient is φ = 17915904000.

The previous prime is 72887039971. The next prime is 72887040029. The reversal of 72887040000 is 4078827.

It is an interprime number because it is at equal distance from previous prime (72887039971) and next prime (72887040029).

It is a tau number, because it is divible by the number of its divisors (1200).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 99 ways as a sum of consecutive naturals, for example, 1969919982 + ... + 1969920018.

Almost surely, 272887040000 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 72887040000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147053006100).

72887040000 is an abundant number, since it is smaller than the sum of its proper divisors (221218972200).

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

72887040000 is an equidigital number, since it uses as much as digits as its factorization.

72887040000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110 (or 66 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The spelling of 72887040000 in words is "seventy-two billion, eight hundred eighty-seven million, forty thousand".