Base | Representation |
---|---|
bin | 10111001111111101… |
… | …10001000100110110 |
3 | 1012012212221111202110 |
4 | 23213332301010312 |
5 | 201030333103210 |
6 | 5422322551450 |
7 | 621212421102 |
oct | 134776610466 |
9 | 35185844673 |
10 | 12481925430 |
11 | 53257a3357 |
12 | 2504208586 |
13 | 123bc5b9c0 |
14 | 865a2a902 |
15 | 4d0c18420 |
hex | 2e7fb1136 |
12481925430 has 64 divisors (see below), whose sum is σ = 33663651840. Its totient is φ = 2938886016.
The previous prime is 12481925429. The next prime is 12481925441. The reversal of 12481925430 is 3452918421.
It is a Harshad number since it is a multiple of its sum of digits (39).
It is a congruent number.
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, 686790 + ... + 704729.
It is an arithmetic number, because the mean of its divisors is an integer number (525994560).
Almost surely, 212481925430 is an apocalyptic number.
12481925430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12481925430 is an abundant number, since it is smaller than the sum of its proper divisors (21181726410).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12481925430 is a wasteful number, since it uses less digits than its factorization.
12481925430 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1391565.
The product of its (nonzero) digits is 69120, while the sum is 39.
The spelling of 12481925430 in words is "twelve billion, four hundred eighty-one million, nine hundred twenty-five thousand, four hundred thirty".
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