Base | Representation |
---|---|
bin | 10110100110010011… |
… | …01001011011110100 |
3 | 1011022112100122001220 |
4 | 23103021221123310 |
5 | 144321402044210 |
6 | 5323520350340 |
7 | 606440114235 |
oct | 132311513364 |
9 | 34275318056 |
10 | 12132456180 |
11 | 5166500999 |
12 | 24271753b0 |
13 | 11b4730270 |
14 | 83145b08c |
15 | 4b01d6c70 |
hex | 2d32696f4 |
12132456180 has 48 divisors (see below), whose sum is σ = 36584024064. Its totient is φ = 2986450560.
The previous prime is 12132456173. The next prime is 12132456227. The reversal of 12132456180 is 8165423121.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7776436 + ... + 7777995.
It is an arithmetic number, because the mean of its divisors is an integer number (762167168).
Almost surely, 212132456180 is an apocalyptic number.
12132456180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12132456180 is an abundant number, since it is smaller than the sum of its proper divisors (24451567884).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12132456180 is a wasteful number, since it uses less digits than its factorization.
12132456180 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15554456 (or 15554454 counting only the distinct ones).
The product of its (nonzero) digits is 11520, while the sum is 33.
The spelling of 12132456180 in words is "twelve billion, one hundred thirty-two million, four hundred fifty-six thousand, one hundred eighty".
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