Base | Representation |
---|---|
bin | 110010101111… |
… | …100011100101 |
3 | 221000210220021 |
4 | 302233203211 |
5 | 11401130424 |
6 | 1153035141 |
7 | 221031211 |
oct | 62574345 |
9 | 27023807 |
10 | 13301989 |
11 | 7565a88 |
12 | 4555ab1 |
13 | 29a97cc |
14 | 1aa3941 |
15 | 127b4e4 |
hex | caf8e5 |
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".
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