Base | Representation |
---|---|
bin | 110010001000… |
… | …011111100101 |
3 | 220201200102100 |
4 | 302020133211 |
5 | 11331020424 |
6 | 1145402313 |
7 | 216463560 |
oct | 62103745 |
9 | 26650370 |
10 | 13141989 |
11 | 7466853 |
12 | 4499399 |
13 | 2951a33 |
14 | 1a614d7 |
15 | 1248dc9 |
hex | c887e5 |
13141989 has 24 divisors (see below), whose sum is σ = 21794240. Its totient is φ = 7475328.
The previous prime is 13141987. The next prime is 13141991. The reversal of 13141989 is 98914131.
13141989 is digitally balanced in base 2, base 4 and base 8, because in such bases it contains all the possibile digits an equal number of times.
It is an interprime number because it is at equal distance from previous prime (13141987) and next prime (13141991).
It is not a de Polignac number, because 13141989 - 21 = 13141987 is a prime.
It is a super-2 number, since 2×131419892 = 345423749752242, which contains 22 as substring.
It is a Duffinian number.
13141989 is strictly pandigital in base 8.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13141981) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20922 + ... + 21540.
Almost surely, 213141989 is an apocalyptic number.
It is an amenable number.
13141989 is a deficient number, since it is larger than the sum of its proper divisors (8652251).
13141989 is a wasteful number, since it uses less digits than its factorization.
13141989 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 969 (or 966 counting only the distinct ones).
The product of its digits is 7776, while the sum is 36.
The square root of 13141989 is about 3625.1881330491. The cubic root of 13141989 is about 235.9864315191.
The spelling of 13141989 in words is "thirteen million, one hundred forty-one thousand, nine hundred eighty-nine".
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