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72051683087 = 2691801148723
BaseRepresentation
bin100001100011010011…
…1010110111100001111
320212222101221201222002
41003012213112330033
52140030212324322
653033341342515
75130336125666
oct1030647267417
9225871851862
1072051683087
1128614329a2a
1211b69b67a3b
136a43519207
1436b72c5ddd
151d1a7d1c92
hex10c69d6f0f

72051683087 has 8 divisors (see below), whose sum is σ = 72360174960. Its totient is φ = 71743492800.

The previous prime is 72051683063. The next prime is 72051683089. The reversal of 72051683087 is 78038615027.

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 72051683087 - 216 = 72051617551 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 (72051683089) 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, 410108 + ... + 558830.

It is an arithmetic number, because the mean of its divisors is an integer number (9045021870).

Almost surely, 272051683087 is an apocalyptic number.

72051683087 is a deficient number, since it is larger than the sum of its proper divisors (308491873).

72051683087 is a wasteful number, since it uses less digits than its factorization.

72051683087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150793.

The product of its (nonzero) digits is 564480, while the sum is 47.

The spelling of 72051683087 in words is "seventy-two billion, fifty-one million, six hundred eighty-three thousand, eighty-seven".

Divisors: 1 269 1801 148723 484469 40006487 267850123 72051683087