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13301989 is a prime number
BaseRepresentation
bin110010101111…
…100011100101
3221000210220021
4302233203211
511401130424
61153035141
7221031211
oct62574345
927023807
1013301989
117565a88
124555ab1
1329a97cc
141aa3941
15127b4e4
hexcaf8e5

13301989 has 2 divisors, whose sum is σ = 13301990. Its totient is φ = 13301988.

The previous prime is 13301983. The next prime is 13302011. The reversal of 13301989 is 98910331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11902500 + 1399489 = 3450^2 + 1183^2 .

It is a cyclic number.

It is not a de Polignac number, because 13301989 - 27 = 13301861 is a prime.

It is a super-2 number, since 2×133019892 = 353885822712242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13301983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6650994 + 6650995.

It is an arithmetic number, because the mean of its divisors is an integer number (6650995).

Almost surely, 213301989 is an apocalyptic number.

It is an amenable number.

13301989 is a deficient number, since it is larger than the sum of its proper divisors (1).

13301989 is an equidigital number, since it uses as much as digits as its factorization.

13301989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 13301989 is about 3647.1891916927. The cubic root of 13301989 is about 236.9402604211.

The spelling of 13301989 in words is "thirteen million, three hundred one thousand, nine hundred eighty-nine".