Base | Representation |
---|---|
bin | 10111111010111100… |
… | …10101010011001111 |
3 | 1020011000110200222211 |
4 | 23331132111103033 |
5 | 202300141144212 |
6 | 5522203451251 |
7 | 633151430353 |
oct | 137536252317 |
9 | 36130420884 |
10 | 12842521807 |
11 | 54a02a5795 |
12 | 25a4b26b27 |
13 | 129888503b |
14 | 89b895463 |
15 | 5026e69a7 |
hex | 2fd7954cf |
12842521807 has 8 divisors (see below), whose sum is σ = 13262372352. Its totient is φ = 12423019800.
The previous prime is 12842521711. The next prime is 12842521817. The reversal of 12842521807 is 70812524821.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-12842521807 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 12842521807.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12842521817) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11173 + ... + 160654.
It is an arithmetic number, because the mean of its divisors is an integer number (1657796544).
Almost surely, 212842521807 is an apocalyptic number.
12842521807 is a deficient number, since it is larger than the sum of its proper divisors (419850545).
12842521807 is a wasteful number, since it uses less digits than its factorization.
12842521807 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 174269.
The product of its (nonzero) digits is 71680, while the sum is 40.
The spelling of 12842521807 in words is "twelve billion, eight hundred forty-two million, five hundred twenty-one thousand, eight hundred seven".
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