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18847114807 = 41267167341
BaseRepresentation
bin10001100011011000…
…000010011000110111
31210122111011122002011
4101203120002120313
5302044330133212
612354103025051
71235022555403
oct214330023067
953574148064
1018847114807
117aa1783344
12379ba3b187
131a1489b551
14cab13c103
1575493a4a7
hex463602637

18847114807 has 12 divisors (see below), whose sum is σ = 19606458088. Its totient is φ = 18112881600.

The previous prime is 18847114801. The next prime is 18847114817. The reversal of 18847114807 is 70841174881.

It is not a de Polignac number, because 18847114807 - 219 = 18846590519 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 (18847114801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28957 + ... + 196297.

Almost surely, 218847114807 is an apocalyptic number.

18847114807 is a deficient number, since it is larger than the sum of its proper divisors (759343281).

18847114807 is an equidigital number, since it uses as much as digits as its factorization.

18847114807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167490 (or 167449 counting only the distinct ones).

The product of its (nonzero) digits is 401408, while the sum is 49.

The spelling of 18847114807 in words is "eighteen billion, eight hundred forty-seven million, one hundred fourteen thousand, eight hundred seven".

Divisors: 1 41 67 1681 2747 112627 167341 6860981 11211847 281300221 459685727 18847114807