Base | Representation |
---|---|
bin | 10111110110111011… |
… | …11111010110111000 |
3 | 1020001200011101200020 |
4 | 23323131333112320 |
5 | 202213033034441 |
6 | 5515002410440 |
7 | 632262443112 |
oct | 137335772670 |
9 | 36050141606 |
10 | 12808877496 |
11 | 5483306278 |
12 | 2595800a20 |
13 | 129190536c |
14 | 8972183b2 |
15 | 4ee79ce66 |
hex | 2fb77f5b8 |
12808877496 has 64 divisors (see below), whose sum is σ = 32874441600. Its totient is φ = 4156645248.
The previous prime is 12808877489. The next prime is 12808877503. The reversal of 12808877496 is 69477880821.
It is an interprime number because it is at equal distance from previous prime (12808877489) and next prime (12808877503).
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, 296610 + ... + 337038.
It is an arithmetic number, because the mean of its divisors is an integer number (513663150).
Almost surely, 212808877496 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 12808877496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16437220800).
12808877496 is an abundant number, since it is smaller than the sum of its proper divisors (20065564104).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12808877496 is a wasteful number, since it uses less digits than its factorization.
12808877496 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 40788 (or 40784 counting only the distinct ones).
The product of its (nonzero) digits is 10838016, while the sum is 60.
The spelling of 12808877496 in words is "twelve billion, eight hundred eight million, eight hundred seventy-seven thousand, four hundred ninety-six".
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