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18920410299 = 337100107991
BaseRepresentation
bin10001100111101111…
…101000110010111011
31210211121002102121000
4101213233220302323
5302222111112144
612405242020043
71236602556030
oct214757506273
953747072530
1018920410299
11802a09532a
1238004a7623
131a26b2206b
14cb6b7b387
1575b0b7769
hex467be8cbb

18920410299 has 16 divisors (see below), whose sum is σ = 32034557440. Its totient is φ = 10811662920.

The previous prime is 18920410297. The next prime is 18920410337. The reversal of 18920410299 is 99201402981.

It is not a de Polignac number, because 18920410299 - 21 = 18920410297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18920410297) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50053807 + ... + 50054184.

It is an arithmetic number, because the mean of its divisors is an integer number (2002159840).

Almost surely, 218920410299 is an apocalyptic number.

18920410299 is a deficient number, since it is larger than the sum of its proper divisors (13114147141).

18920410299 is a wasteful number, since it uses less digits than its factorization.

18920410299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100108007 (or 100108001 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The spelling of 18920410299 in words is "eighteen billion, nine hundred twenty million, four hundred ten thousand, two hundred ninety-nine".

Divisors: 1 3 7 9 21 27 63 189 100107991 300323973 700755937 900971919 2102267811 2702915757 6306803433 18920410299