Base | Representation |
---|---|
bin | 10111110011100000… |
… | …00111110000010010 |
3 | 1012222122222010112000 |
4 | 23321300013300102 |
5 | 202133144413200 |
6 | 5512053214430 |
7 | 631462565640 |
oct | 137160076022 |
9 | 35878863460 |
10 | 12780076050 |
11 | 5469024325 |
12 | 2588031416 |
13 | 128895caa1 |
14 | 89347c190 |
15 | 4ebeae300 |
hex | 2f9c07c12 |
12780076050 has 96 divisors (see below), whose sum is σ = 40247126400. Its totient is φ = 2921158080.
The previous prime is 12780076031. The next prime is 12780076069. The reversal of 12780076050 is 5067008721.
12780076050 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.
It is an interprime number because it is at equal distance from previous prime (12780076031) and next prime (12780076069).
It is a junction number, because it is equal to n+sod(n) for n = 12780075996 and 12780076014.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 666745 + ... + 685644.
It is an arithmetic number, because the mean of its divisors is an integer number (419240900).
Almost surely, 212780076050 is an apocalyptic number.
12780076050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12780076050 is an abundant number, since it is smaller than the sum of its proper divisors (27467050350).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12780076050 is a wasteful number, since it uses less digits than its factorization.
12780076050 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1352417 (or 1352406 counting only the distinct ones).
The product of its (nonzero) digits is 23520, while the sum is 36.
The spelling of 12780076050 in words is "twelve billion, seven hundred eighty million, seventy-six thousand, fifty".
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