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18850404607 = 231501754577
BaseRepresentation
bin10001100011100100…
…100101100011111111
31210122201100202211121
4101203210211203333
5302101200421412
612354301331411
71235062536556
oct214344454377
953581322747
1018850404607
117aa361aa91
1237a0b66b67
131a15480a88
14cab756d9d
15754d8a107
hex4639258ff

18850404607 has 8 divisors (see below), whose sum is σ = 19671657696. Its totient is φ = 18029290752.

The previous prime is 18850404581. The next prime is 18850404619. The reversal of 18850404607 is 70640405881.

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 18850404607 - 219 = 18849880319 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18850404907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 318103 + ... + 372679.

It is an arithmetic number, because the mean of its divisors is an integer number (2458957212).

Almost surely, 218850404607 is an apocalyptic number.

18850404607 is a deficient number, since it is larger than the sum of its proper divisors (821253089).

18850404607 is a wasteful number, since it uses less digits than its factorization.

18850404607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69617.

The product of its (nonzero) digits is 215040, while the sum is 43.

The spelling of 18850404607 in words is "eighteen billion, eight hundred fifty million, four hundred four thousand, six hundred seven".

Divisors: 1 23 15017 54577 345391 1255271 819582809 18850404607