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445131441243205 = 5351110325355647
BaseRepresentation
bin110010100110110000011110…
…1011011110000010001000101
32011101002011001111012020111021
41211031200331123300101011
5431321013142424240310
64214414321105511141
7162521454034625023
oct14515407533602105
92141064044166437
10445131441243205
11119918203035742
1241b115570424b1
131614b93a540412
147bcc696141713
15366dd54bc05da
hex194d83d6f0445

445131441243205 has 8 divisors (see below), whose sum is σ = 534157902692352. Its totient is φ = 356105037527568.

The previous prime is 445131441243179. The next prime is 445131441243239. The reversal of 445131441243205 is 502342144131544.

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 445131441243205 - 29 = 445131441242693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4877692 + ... + 30233338.

It is an arithmetic number, because the mean of its divisors is an integer number (66769737836544).

Almost surely, 2445131441243205 is an apocalyptic number.

It is an amenable number.

445131441243205 is a deficient number, since it is larger than the sum of its proper divisors (89026461449147).

445131441243205 is a wasteful number, since it uses less digits than its factorization.

445131441243205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28866755.

The product of its (nonzero) digits is 921600, while the sum is 43.

Adding to 445131441243205 its reverse (502342144131544), we get a palindrome (947473585374749).

The spelling of 445131441243205 in words is "four hundred forty-five trillion, one hundred thirty-one billion, four hundred forty-one million, two hundred forty-three thousand, two hundred five".

Divisors: 1 5 3511103 17555515 25355647 126778235 89026288248641 445131441243205