Base | Representation |
---|---|
bin | 10111111011100000… |
… | …11111010010111110 |
3 | 1020011100102111211220 |
4 | 23331300133102332 |
5 | 202302401000332 |
6 | 5522453454210 |
7 | 633240042510 |
oct | 137560372276 |
9 | 36140374756 |
10 | 12847281342 |
11 | 54a2a56695 |
12 | 25a6641366 |
13 | 129986052c |
14 | 89c373bb0 |
15 | 502d36d2c |
hex | 2fdc1f4be |
12847281342 has 16 divisors (see below), whose sum is σ = 29365214592. Its totient is φ = 3670651800.
The previous prime is 12847281313. The next prime is 12847281379. The reversal of 12847281342 is 24318274821.
It is a Harshad number since it is a multiple of its sum of digits (42), and also a Moran number because the ratio is a prime number: 305887651 = 12847281342 / (1 + 2 + 8 + 4 + 7 + 2 + 8 + 1 + 3 + 4 + 2).
It is a junction number, because it is equal to n+sod(n) for n = 12847281294 and 12847281303.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152943784 + ... + 152943867.
It is an arithmetic number, because the mean of its divisors is an integer number (1835325912).
Almost surely, 212847281342 is an apocalyptic number.
12847281342 is an abundant number, since it is smaller than the sum of its proper divisors (16517933250).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12847281342 is a wasteful number, since it uses less digits than its factorization.
12847281342 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 305887663.
The product of its digits is 172032, while the sum is 42.
The spelling of 12847281342 in words is "twelve billion, eight hundred forty-seven million, two hundred eighty-one thousand, three hundred forty-two".
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