Base | Representation |
---|---|
bin | 10111010011101100… |
… | …00001110001110000 |
3 | 1012022001202212021120 |
4 | 23221312001301300 |
5 | 201111334021401 |
6 | 5425401022240 |
7 | 622042231341 |
oct | 135166016160 |
9 | 35261685246 |
10 | 12513188976 |
11 | 53414070a2 |
12 | 2512784980 |
13 | 1245586b42 |
14 | 869c480c8 |
15 | 4d3841836 |
hex | 2e9d81c70 |
12513188976 has 20 divisors (see below), whose sum is σ = 32325738312. Its totient is φ = 4171062976.
The previous prime is 12513188953. The next prime is 12513188977. The reversal of 12513188976 is 67988131521.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12513188977) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130345671 + ... + 130345766.
Almost surely, 212513188976 is an apocalyptic number.
12513188976 is a gapful number since it is divisible by the number (16) formed by its first and last digit.
It is an amenable number.
12513188976 is an abundant number, since it is smaller than the sum of its proper divisors (19812549336).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12513188976 is a wasteful number, since it uses less digits than its factorization.
12513188976 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 260691448 (or 260691442 counting only the distinct ones).
The product of its digits is 725760, while the sum is 51.
The spelling of 12513188976 in words is "twelve billion, five hundred thirteen million, one hundred eighty-eight thousand, nine hundred seventy-six".
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