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45280811905 = 571293737483
BaseRepresentation
bin101010001010111100…
…100101101110000001
311022212200211120120121
4222022330211232001
51220213341440110
632445100540241
73162046356610
oct521274455601
9138780746517
1045280811905
11182269241aa
128938551681
134368151234
142297a89877
1512a040bcda
hexa8af25b81

45280811905 has 8 divisors (see below), whose sum is σ = 62099399232. Its totient is φ = 31049699568.

The previous prime is 45280811893. The next prime is 45280811959. The reversal of 45280811905 is 50911808254.

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 45280811905 - 217 = 45280680833 is a prime.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 646868707 + ... + 646868776.

It is an arithmetic number, because the mean of its divisors is an integer number (7762424904).

Almost surely, 245280811905 is an apocalyptic number.

It is an amenable number.

45280811905 is a deficient number, since it is larger than the sum of its proper divisors (16818587327).

45280811905 is a wasteful number, since it uses less digits than its factorization.

45280811905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1293737495.

The product of its (nonzero) digits is 115200, while the sum is 43.

The spelling of 45280811905 in words is "forty-five billion, two hundred eighty million, eight hundred eleven thousand, nine hundred five".

Divisors: 1 5 7 35 1293737483 6468687415 9056162381 45280811905