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18739114941 = 36246371647
BaseRepresentation
bin10001011100111100…
…000011001110111101
31210100221221200010010
4101130330003032331
5301334203134231
612335244133433
71232241564111
oct213474031675
953327850103
1018739114941
117a46818458
12376b837279
1319c83b66c1
14c9aa67741
1574a205546
hex45cf033bd

18739114941 has 4 divisors (see below), whose sum is σ = 24985486592. Its totient is φ = 12492743292.

The previous prime is 18739114939. The next prime is 18739114981. The reversal of 18739114941 is 14941193781.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 18739114941 - 21 = 18739114939 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 (18739114981) 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 3 ways as a sum of consecutive naturals, for example, 3123185821 + ... + 3123185826.

It is an arithmetic number, because the mean of its divisors is an integer number (6246371648).

Almost surely, 218739114941 is an apocalyptic number.

It is an amenable number.

18739114941 is a deficient number, since it is larger than the sum of its proper divisors (6246371651).

18739114941 is an equidigital number, since it uses as much as digits as its factorization.

18739114941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6246371650.

The product of its digits is 217728, while the sum is 48.

The spelling of 18739114941 in words is "eighteen billion, seven hundred thirty-nine million, one hundred fourteen thousand, nine hundred forty-one".

Divisors: 1 3 6246371647 18739114941