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72047406204 = 22331793726847
BaseRepresentation
bin100001100011001011…
…1000010110001111100
320212222002220110012000
41003012113002301330
52140023113444304
653033105542300
75130254563644
oct1030627026174
9225862813160
1072047406204
1128611978714
1211b68644990
136a4267c607
1436b68d1524
151d1a239939
hex10c65c2c7c

72047406204 has 48 divisors (see below), whose sum is σ = 187833139200. Its totient is φ = 23881629168.

The previous prime is 72047406199. The next prime is 72047406217. The reversal of 72047406204 is 40260474027.

It is a happy number.

72047406204 is a `hidden beast` number, since 7 + 2 + 0 + 47 + 406 + 204 = 666.

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

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1844092 + ... + 1882755.

It is an arithmetic number, because the mean of its divisors is an integer number (3913190400).

Almost surely, 272047406204 is an apocalyptic number.

It is an amenable number.

72047406204 is an abundant number, since it is smaller than the sum of its proper divisors (115785732996).

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

72047406204 is a wasteful number, since it uses less digits than its factorization.

72047406204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3727039 (or 3727031 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 36.

The spelling of 72047406204 in words is "seventy-two billion, forty-seven million, four hundred six thousand, two hundred four".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 179 358 537 716 1074 1611 2148 3222 4833 6444 9666 19332 3726847 7453694 11180541 14907388 22361082 33541623 44722164 67083246 100624869 134166492 201249738 402499476 667105613 1334211226 2001316839 2668422452 4002633678 6003950517 8005267356 12007901034 18011851551 24015802068 36023703102 72047406204