Base | Representation |
---|---|
bin | 10111111111111001… |
… | …10101011011000111 |
3 | 1020020220122200022212 |
4 | 23333330311123013 |
5 | 202341310302020 |
6 | 5530250214035 |
7 | 634164543344 |
oct | 137774653307 |
9 | 36226580285 |
10 | 12884072135 |
11 | 55117a5100 |
12 | 25b6a2431b |
13 | 12a437242c |
14 | 8a31cd7cb |
15 | 5061a2cc5 |
hex | 2fff356c7 |
12884072135 has 24 divisors (see below), whose sum is σ = 17013423840. Its totient is φ = 9359634240.
The previous prime is 12884072111. The next prime is 12884072141. The reversal of 12884072135 is 53127048821.
It is not a de Polignac number, because 12884072135 - 212 = 12884068039 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 12884072092 and 12884072101.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 544409 + ... + 567581.
It is an arithmetic number, because the mean of its divisors is an integer number (708892660).
Almost surely, 212884072135 is an apocalyptic number.
12884072135 is a deficient number, since it is larger than the sum of its proper divisors (4129351705).
12884072135 is a wasteful number, since it uses less digits than its factorization.
12884072135 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 24119 (or 24108 counting only the distinct ones).
The product of its (nonzero) digits is 107520, while the sum is 41.
The spelling of 12884072135 in words is "twelve billion, eight hundred eighty-four million, seventy-two thousand, one hundred thirty-five".
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