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72513147068 = 2218128286767
BaseRepresentation
bin100001110001000011…
…1101101000010111100
320221011120021112112122
41003202013231002330
52142001331201233
653151224222112
75144641403015
oct1034207550274
9227146245478
1072513147068
112883086571a
121207860a938
136ab7ccac1b
14371c6ca00c
151d46086d98
hex10e21ed0bc

72513147068 has 6 divisors (see below), whose sum is σ = 126898007376. Its totient is φ = 36256573532.

The previous prime is 72513147061. The next prime is 72513147073. The reversal of 72513147068 is 86074131527.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72513147061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9064143380 + ... + 9064143387.

It is an arithmetic number, because the mean of its divisors is an integer number (21149667896).

Almost surely, 272513147068 is an apocalyptic number.

It is an amenable number.

72513147068 is a deficient number, since it is larger than the sum of its proper divisors (54384860308).

72513147068 is a wasteful number, since it uses less digits than its factorization.

72513147068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18128286771 (or 18128286769 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 44.

The spelling of 72513147068 in words is "seventy-two billion, five hundred thirteen million, one hundred forty-seven thousand, sixty-eight".

Divisors: 1 2 4 18128286767 36256573534 72513147068