Base | Representation |
---|---|
bin | 10110101011111010… |
… | …10110100110111100 |
3 | 1011102211000000012120 |
4 | 23111331112212330 |
5 | 144420432034423 |
6 | 5332322202540 |
7 | 610551410553 |
oct | 132575264674 |
9 | 34384000176 |
10 | 12179564988 |
11 | 5190057498 |
12 | 243aab3450 |
13 | 11c14156b6 |
14 | 837800d9a |
15 | 4b43deee3 |
hex | 2d5f569bc |
12179564988 has 24 divisors (see below), whose sum is σ = 28808288208. Its totient is φ = 4004240256.
The previous prime is 12179564987. The next prime is 12179565023. The reversal of 12179564988 is 88946597121.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12179564987) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6950931 + ... + 6952682.
It is an arithmetic number, because the mean of its divisors is an integer number (1200345342).
Almost surely, 212179564988 is an apocalyptic number.
It is an amenable number.
12179564988 is an abundant number, since it is smaller than the sum of its proper divisors (16628723220).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12179564988 is a wasteful number, since it uses less digits than its factorization.
12179564988 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13903693 (or 13903691 counting only the distinct ones).
The product of its digits is 8709120, while the sum is 60.
The spelling of 12179564988 in words is "twelve billion, one hundred seventy-nine million, five hundred sixty-four thousand, nine hundred eighty-eight".
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