Base | Representation |
---|---|
bin | 11000001100010100… |
… | …01110101000010000 |
3 | 1020112011200021202022 |
4 | 30012022032220100 |
5 | 203044442342134 |
6 | 5544451111012 |
7 | 636601163000 |
oct | 140612165020 |
9 | 36464607668 |
10 | 12988246544 |
11 | 5565587959 |
12 | 26258a2468 |
13 | 12bcb17cb0 |
14 | 8b2d8a000 |
15 | 5103ce52e |
hex | 30628ea10 |
12988246544 has 160 divisors (see below), whose sum is σ = 31760467200. Its totient is φ = 5112834048.
The previous prime is 12988246529. The next prime is 12988246561. The reversal of 12988246544 is 44564288921.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21902312 + ... + 21902904.
It is an arithmetic number, because the mean of its divisors is an integer number (198502920).
Almost surely, 212988246544 is an apocalyptic number.
12988246544 is a gapful number since it is divisible by the number (14) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 12988246544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15880233600).
12988246544 is an abundant number, since it is smaller than the sum of its proper divisors (18772220656).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12988246544 is a wasteful number, since it uses less digits than its factorization.
12988246544 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 942 (or 922 counting only the distinct ones).
The product of its digits is 4423680, while the sum is 53.
The spelling of 12988246544 in words is "twelve billion, nine hundred eighty-eight million, two hundred forty-six thousand, five hundred forty-four".
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