Base | Representation |
---|---|
bin | 10111111010011111… |
… | …10010101001111100 |
3 | 1020010202022001000111 |
4 | 23331033302221330 |
5 | 202243202204014 |
6 | 5521550035404 |
7 | 633104143030 |
oct | 137517625174 |
9 | 36122261014 |
10 | 12838709884 |
11 | 5499131840 |
12 | 25a37a8b64 |
13 | 1297b4bc70 |
14 | 89b1821c0 |
15 | 5021e22c4 |
hex | 2fd3f2a7c |
12838709884 has 48 divisors (see below), whose sum is σ = 30166488576. Its totient is φ = 4617316800.
The previous prime is 12838709867. The next prime is 12838709921. The reversal of 12838709884 is 48890783821.
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, 1599232 + ... + 1607239.
It is an arithmetic number, because the mean of its divisors is an integer number (628468512).
Almost surely, 212838709884 is an apocalyptic number.
12838709884 is a gapful number since it is divisible by the number (14) formed by its first and last digit.
It is an amenable number.
12838709884 is an abundant number, since it is smaller than the sum of its proper divisors (17327778692).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12838709884 is a wasteful number, since it uses less digits than its factorization.
12838709884 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3206506 (or 3206504 counting only the distinct ones).
The product of its (nonzero) digits is 6193152, while the sum is 58.
The spelling of 12838709884 in words is "twelve billion, eight hundred thirty-eight million, seven hundred nine thousand, eight hundred eighty-four".
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