Base | Representation |
---|---|
bin | 11000101010101100… |
… | …11011011110100100 |
3 | 1021011221020100021111 |
4 | 30111112123132210 |
5 | 204110213300030 |
6 | 10030033354404 |
7 | 646114343101 |
oct | 142526333644 |
9 | 37157210244 |
10 | 13243103140 |
11 | 5686428443 |
12 | 2697108a04 |
13 | 133086b107 |
14 | 8d8b6baa8 |
15 | 52797262a |
hex | 31559b7a4 |
13243103140 has 24 divisors (see below), whose sum is σ = 27812833272. Its totient is φ = 5296800000.
The previous prime is 13243103129. The next prime is 13243103171. The reversal of 13243103140 is 4130134231.
It can be written as a sum of positive squares in 4 ways, for example, as 25462116 + 13217641024 = 5046^2 + 114968^2 .
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 334390 + ... + 371890.
It is an arithmetic number, because the mean of its divisors is an integer number (1158868053).
Almost surely, 213243103140 is an apocalyptic number.
13243103140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
13243103140 is an abundant number, since it is smaller than the sum of its proper divisors (14569730132).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
13243103140 is a wasteful number, since it uses less digits than its factorization.
13243103140 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 55167 (or 55165 counting only the distinct ones).
The product of its (nonzero) digits is 864, while the sum is 22.
Adding to 13243103140 its reverse (4130134231), we get a palindrome (17373237371).
The spelling of 13243103140 in words is "thirteen billion, two hundred forty-three million, one hundred three thousand, one hundred forty".
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