Base | Representation |
---|---|
bin | 110001110010… |
… | …000011100001 |
3 | 220120000100100 |
4 | 301302003201 |
5 | 11320100311 |
6 | 1143413013 |
7 | 215631612 |
oct | 61620341 |
9 | 26500310 |
10 | 13050081 |
11 | 74037a0 |
12 | 4454169 |
13 | 291bc55 |
14 | 1a39c09 |
15 | 122ba56 |
hex | c720e1 |
13050081 has 24 divisors (see below), whose sum is σ = 20700576. Its totient is φ = 7856640.
The previous prime is 13050077. The next prime is 13050083. The reversal of 13050081 is 18005031.
It is a happy number.
It is not a de Polignac number, because 13050081 - 22 = 13050077 is a prime.
It is a super-2 number, since 2×130500812 = 340609228213122, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13050083) 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, 18766 + ... + 19448.
It is an arithmetic number, because the mean of its divisors is an integer number (862524).
Almost surely, 213050081 is an apocalyptic number.
13050081 is a gapful number since it is divisible by the number (11) formed by its first and last digit.
It is an amenable number.
13050081 is a deficient number, since it is larger than the sum of its proper divisors (7650495).
13050081 is a wasteful number, since it uses less digits than its factorization.
13050081 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 893 (or 890 counting only the distinct ones).
The product of its (nonzero) digits is 120, while the sum is 18.
The square root of 13050081 is about 3612.4895847601. The cubic root of 13050081 is about 235.4350233874.
The spelling of 13050081 in words is "thirteen million, fifty thousand, eighty-one".
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