Base | Representation |
---|---|
bin | 1011101101001011110011… |
… | …0101011010110100110100 |
3 | 1200120110000110112000201021 |
4 | 2323102330311122310310 |
5 | 3141334040333421212 |
6 | 43212445540110524 |
7 | 2465614441032310 |
oct | 273227465326464 |
9 | 50513013460637 |
10 | 12870890138932 |
11 | 4112571a38181 |
12 | 153a56b095444 |
13 | 724948336a17 |
14 | 326d50c6ab40 |
15 | 174c04a53307 |
hex | bb4bcd5ad34 |
12870890138932 has 48 divisors (see below), whose sum is σ = 26861918227200. Its totient is φ = 5276082822912.
The previous prime is 12870890138927. The next prime is 12870890138933. The reversal of 12870890138932 is 23983109807821.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12870890138933) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19115944 + ... + 19777792.
It is an arithmetic number, because the mean of its divisors is an integer number (559623296400).
Almost surely, 212870890138932 is an apocalyptic number.
It is an amenable number.
12870890138932 is an abundant number, since it is smaller than the sum of its proper divisors (13991028088268).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12870890138932 is a wasteful number, since it uses less digits than its factorization.
12870890138932 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 692080 (or 692078 counting only the distinct ones).
The product of its (nonzero) digits is 10450944, while the sum is 61.
The spelling of 12870890138932 in words is "twelve trillion, eight hundred seventy billion, eight hundred ninety million, one hundred thirty-eight thousand, nine hundred thirty-two".
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