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72051887013 = 3127921187751
BaseRepresentation
bin100001100011010100…
…0001000101110100101
320212222102100002200220
41003012220020232211
52140030240341023
653033345554553
75130340635351
oct1030650105645
9225872302626
1072051887013
1128614459167
1211b6a045a59
136a4358ac92
1436b733a461
151d1a8223e3
hex10c6a08ba5

72051887013 has 8 divisors (see below), whose sum is σ = 96070445376. Its totient is φ = 48033960000.

The previous prime is 72051886999. The next prime is 72051887053. The reversal of 72051887013 is 31078815027.

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

It is not a de Polignac number, because 72051887013 - 220 = 72050838437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72051887053) 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, 289888 + ... + 477638.

It is an arithmetic number, because the mean of its divisors is an integer number (12008805672).

Almost surely, 272051887013 is an apocalyptic number.

It is an amenable number.

72051887013 is a deficient number, since it is larger than the sum of its proper divisors (24018558363).

72051887013 is a wasteful number, since it uses less digits than its factorization.

72051887013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315675.

The product of its (nonzero) digits is 94080, while the sum is 42.

The spelling of 72051887013 in words is "seventy-two billion, fifty-one million, eight hundred eighty-seven thousand, thirteen".

Divisors: 1 3 127921 187751 383763 563253 24017295671 72051887013