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18676201 is a prime number
BaseRepresentation
bin100011100111…
…1100111101001
31022010211221011
41013033213221
514240114301
61504143521
7314513365
oct107174751
938124834
1018676201
11a5a6785
126307ba1
133b3ba0b
1426a22a5
15198da51
hex11cf9e9

18676201 has 2 divisors, whose sum is σ = 18676202. Its totient is φ = 18676200.

The previous prime is 18676129. The next prime is 18676211. The reversal of 18676201 is 10267681.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11256025 + 7420176 = 3355^2 + 2724^2 .

It is a cyclic number.

It is not a de Polignac number, because 18676201 - 223 = 10287593 is a prime.

It is not a weakly prime, because it can be changed into another prime (18676211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9338100 + 9338101.

It is an arithmetic number, because the mean of its divisors is an integer number (9338101).

Almost surely, 218676201 is an apocalyptic number.

It is an amenable number.

18676201 is a deficient number, since it is larger than the sum of its proper divisors (1).

18676201 is an equidigital number, since it uses as much as digits as its factorization.

18676201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 18676201 is about 4321.5970427609. The cubic root of 18676201 is about 265.3156367175.

The spelling of 18676201 in words is "eighteen million, six hundred seventy-six thousand, two hundred one".