Base | Representation |
---|---|
bin | 10111001111110010… |
… | …11100001000011000 |
3 | 1012012210022120002212 |
4 | 23213321130020120 |
5 | 201030003411140 |
6 | 5422233014252 |
7 | 621164513456 |
oct | 134771341030 |
9 | 35183276085 |
10 | 12480528920 |
11 | 5324a2a112 |
12 | 2503854388 |
13 | 123b890172 |
14 | 8657859d6 |
15 | 4d0a3e765 |
hex | 2e7e5c218 |
12480528920 has 64 divisors (see below), whose sum is σ = 29793420000. Its totient is φ = 4689008640.
The previous prime is 12480528913. The next prime is 12480528961. The reversal of 12480528920 is 2982508421.
It is a happy number.
12480528920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 320930 + ... + 357710.
Almost surely, 212480528920 is an apocalyptic number.
12480528920 is a gapful number since it is divisible by the number (10) 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 12480528920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14896710000).
12480528920 is an abundant number, since it is smaller than the sum of its proper divisors (17312891080).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12480528920 is a wasteful number, since it uses less digits than its factorization.
12480528920 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 37308 (or 37304 counting only the distinct ones).
The product of its (nonzero) digits is 92160, while the sum is 41.
The spelling of 12480528920 in words is "twelve billion, four hundred eighty million, five hundred twenty-eight thousand, nine hundred twenty".
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