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72397674502 = 267691781883
BaseRepresentation
bin100001101101100111…
…1001101100000000110
320220212111222220221221
41003123033031200012
52141232301041002
653131541230554
75142040036216
oct1033317154006
9226774886857
1072397674502
112878166644a
1212045a0245a
136a9a0ca96a
14370b22c246
151d3ad77c37
hex10db3cd806

72397674502 has 16 divisors (see below), whose sum is σ = 110377000512. Its totient is φ = 35606906280.

The previous prime is 72397674493. The next prime is 72397674521. The reversal of 72397674502 is 20547679327.

It is a self number, because there is not a number n which added to its sum of digits gives 72397674502.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 298348 + ... + 483535.

It is an arithmetic number, because the mean of its divisors is an integer number (6898562532).

Almost surely, 272397674502 is an apocalyptic number.

72397674502 is a deficient number, since it is larger than the sum of its proper divisors (37979326010).

72397674502 is a wasteful number, since it uses less digits than its factorization.

72397674502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782643.

The product of its (nonzero) digits is 4445280, while the sum is 52.

The spelling of 72397674502 in words is "seventy-two billion, three hundred ninety-seven million, six hundred seventy-four thousand, five hundred two".

Divisors: 1 2 67 134 691 1382 46297 92594 781883 1563766 52386161 104772322 540281153 1080562306 36198837251 72397674502