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18473116201 = 77339238859
BaseRepresentation
bin10001001101000101…
…010110001000101001
31202200102102112102221
4101031011112020221
5300313104204301
612253022554041
71222531616431
oct211505261051
952612375387
1018473116201
11791a657691
1236b6738921
131985261bb7
14c735c52c1
15731bb0da1
hex44d156229

18473116201 has 4 divisors (see below), whose sum is σ = 18473432400. Its totient is φ = 18472800004.

The previous prime is 18473116183. The next prime is 18473116223. The reversal of 18473116201 is 10261137481.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-18473116201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18473116001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42091 + ... + 196768.

It is an arithmetic number, because the mean of its divisors is an integer number (4618358100).

Almost surely, 218473116201 is an apocalyptic number.

It is an amenable number.

18473116201 is a deficient number, since it is larger than the sum of its proper divisors (316199).

18473116201 is an equidigital number, since it uses as much as digits as its factorization.

18473116201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316198.

The product of its (nonzero) digits is 8064, while the sum is 34.

The spelling of 18473116201 in words is "eighteen billion, four hundred seventy-three million, one hundred sixteen thousand, two hundred one".

Divisors: 1 77339 238859 18473116201