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44480143687 = 77189497271
BaseRepresentation
bin101001011011001110…
…010010000101000111
311020210220020102021011
4221123032102011013
51212043404044222
632233415503051
73133154661130
oct513316220507
9136726212234
1044480143687
1117955977331
128754387a87
13426b2c6165
14221d5c8c87
151254ea1c77
hexa5b392147

44480143687 has 8 divisors (see below), whose sum is σ = 51550428672. Its totient is φ = 37588853400.

The previous prime is 44480143681. The next prime is 44480143691. The reversal of 44480143687 is 78634108444.

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

It is not a de Polignac number, because 44480143687 - 23 = 44480143679 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 44480143687.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44480143681) by changing a digit.

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, 44748139 + ... + 44749132.

It is an arithmetic number, because the mean of its divisors is an integer number (6443803584).

Almost surely, 244480143687 is an apocalyptic number.

44480143687 is a deficient number, since it is larger than the sum of its proper divisors (7070284985).

44480143687 is an equidigital number, since it uses as much as digits as its factorization.

44480143687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89497349.

The product of its (nonzero) digits is 2064384, while the sum is 49.

The spelling of 44480143687 in words is "forty-four billion, four hundred eighty million, one hundred forty-three thousand, six hundred eighty-seven".

Divisors: 1 7 71 497 89497271 626480897 6354306241 44480143687