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18741110953 = 231777458543
BaseRepresentation
bin10001011101000011…
…101010100010101001
31210101002201002010111
4101131003222202221
5301340211022303
612335355014321
71232264546305
oct213503524251
953332632114
1018741110953
117a47961054
12377043a3a1
1319c8935086
14c9b026d05
1574a49bb6d
hex45d0ea8a9

18741110953 has 8 divisors (see below), whose sum is σ = 19566989568. Its totient is φ = 17916153024.

The previous prime is 18741110897. The next prime is 18741111017. The reversal of 18741110953 is 35901114781.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-18741110953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18741110053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188401 + ... + 270142.

It is an arithmetic number, because the mean of its divisors is an integer number (2445873696).

Almost surely, 218741110953 is an apocalyptic number.

It is an amenable number.

18741110953 is a deficient number, since it is larger than the sum of its proper divisors (825878615).

18741110953 is a wasteful number, since it uses less digits than its factorization.

18741110953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460343.

The product of its (nonzero) digits is 30240, while the sum is 40.

The spelling of 18741110953 in words is "eighteen billion, seven hundred forty-one million, one hundred ten thousand, nine hundred fifty-three".

Divisors: 1 23 1777 40871 458543 10546489 814830911 18741110953