Base | Representation |
---|---|
bin | 10111110110100110… |
… | …01100010010100101 |
3 | 1020001110211120210210 |
4 | 23323103030102211 |
5 | 202211322000020 |
6 | 5514422010033 |
7 | 632226413442 |
oct | 137323142245 |
9 | 36043746723 |
10 | 12806046885 |
11 | 5481752625 |
12 | 2594876919 |
13 | 1291153b48 |
14 | 896abc9c9 |
15 | 4ee3de3e0 |
hex | 2fb4cc4a5 |
12806046885 has 16 divisors (see below), whose sum is σ = 20491298496. Its totient is φ = 6829350528.
The previous prime is 12806046871. The next prime is 12806046899. The reversal of 12806046885 is 58864060821.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (12806046871) and next prime (12806046899).
It is not a de Polignac number, because 12806046885 - 25 = 12806046853 is a prime.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 226377 + ... + 277233.
It is an arithmetic number, because the mean of its divisors is an integer number (1280706156).
Almost surely, 212806046885 is an apocalyptic number.
12806046885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
12806046885 is a deficient number, since it is larger than the sum of its proper divisors (7685251611).
12806046885 is a wasteful number, since it uses less digits than its factorization.
12806046885 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 67652.
The product of its (nonzero) digits is 737280, while the sum is 48.
The spelling of 12806046885 in words is "twelve billion, eight hundred six million, forty-six thousand, eight hundred eighty-five".
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