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72158014227 = 3131850205493
BaseRepresentation
bin100001100110011110…
…0111110101100010011
320220020211000220212110
41003030330332230103
52140234422423402
653052100400403
75133100000215
oct1031474765423
9226224026773
1072158014227
1128669355102
1211b996a6103
136a5c568650
1436c74845b5
151d24cd756c
hex10ccf3eb13

72158014227 has 8 divisors (see below), whose sum is σ = 103611507664. Its totient is φ = 44404931808.

The previous prime is 72158014219. The next prime is 72158014273. The reversal of 72158014227 is 72241085127.

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

It is not a de Polignac number, because 72158014227 - 23 = 72158014219 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 1850205493 = 72158014227 / (7 + 2 + 1 + 5 + 8 + 0 + 1 + 4 + 2 + 2 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72158014217) 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, 925102708 + ... + 925102785.

It is an arithmetic number, because the mean of its divisors is an integer number (12951438458).

Almost surely, 272158014227 is an apocalyptic number.

72158014227 is a deficient number, since it is larger than the sum of its proper divisors (31453493437).

72158014227 is a wasteful number, since it uses less digits than its factorization.

72158014227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1850205509.

The product of its (nonzero) digits is 62720, while the sum is 39.

The spelling of 72158014227 in words is "seventy-two billion, one hundred fifty-eight million, fourteen thousand, two hundred twenty-seven".

Divisors: 1 3 13 39 1850205493 5550616479 24052671409 72158014227