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72715065133 = 235359651407
BaseRepresentation
bin100001110111000100…
…1111101011100101101
320221200122020001001111
41003232021331130231
52142410024041013
653223240112021
75152642566304
oct1035611753455
9227618201044
1072715065133
1128924838757
1212114165611
136b1aaa7279
14373b44b43b
151d58b6e73d
hex10ee27d72d

72715065133 has 8 divisors (see below), whose sum is σ = 77308224768. Its totient is φ = 68241208464.

The previous prime is 72715065121. The next prime is 72715065139. The reversal of 72715065133 is 33156051727.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72715065133 - 221 = 72712967981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72715065139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29824485 + ... + 29826922.

It is an arithmetic number, because the mean of its divisors is an integer number (9663528096).

Almost surely, 272715065133 is an apocalyptic number.

It is an amenable number.

72715065133 is a deficient number, since it is larger than the sum of its proper divisors (4593159635).

72715065133 is a wasteful number, since it uses less digits than its factorization.

72715065133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59651483.

The product of its (nonzero) digits is 132300, while the sum is 40.

The spelling of 72715065133 in words is "seventy-two billion, seven hundred fifteen million, sixty-five thousand, one hundred thirty-three".

Divisors: 1 23 53 1219 59651407 1371982361 3161524571 72715065133