Base | Representation |
---|---|
bin | 110010000110… |
… | …010000101101 |
3 | 220201012212200 |
4 | 302012100231 |
5 | 11330222340 |
6 | 1145252113 |
7 | 216425115 |
oct | 62062055 |
9 | 26635780 |
10 | 13132845 |
11 | 745a9a0 |
12 | 4494039 |
13 | 294a81b |
14 | 1a5c045 |
15 | 1246330 |
hex | c8642d |
13132845 has 48 divisors (see below), whose sum is σ = 25451712. Its totient is φ = 6209280.
The previous prime is 13132843. The next prime is 13132877. The reversal of 13132845 is 54823131.
It is a happy number.
It is not a de Polignac number, because 13132845 - 21 = 13132843 is a prime.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13132843) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20977 + ... + 21593.
It is an arithmetic number, because the mean of its divisors is an integer number (530244).
Almost surely, 213132845 is an apocalyptic number.
13132845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
13132845 is a deficient number, since it is larger than the sum of its proper divisors (12318867).
13132845 is a wasteful number, since it uses less digits than its factorization.
13132845 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 682 (or 679 counting only the distinct ones).
The product of its digits is 2880, while the sum is 27.
The square root of 13132845 is about 3623.9267376701. The cubic root of 13132845 is about 235.9316868734.
Adding to 13132845 its reverse (54823131), we get a palindrome (67955976).
The spelling of 13132845 in words is "thirteen million, one hundred thirty-two thousand, eight hundred forty-five".
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