Base | Representation |
---|---|
bin | 10110111011101010… |
… | …10101010110001110 |
3 | 1011210000121011110220 |
4 | 23131311111112032 |
5 | 200203242233043 |
6 | 5353402012210 |
7 | 614044361643 |
oct | 133565252616 |
9 | 34700534426 |
10 | 12311680398 |
11 | 5248693786 |
12 | 24771a7066 |
13 | 12128c1cb4 |
14 | 84b191dca |
15 | 4c0cda483 |
hex | 2ddd5558e |
12311680398 has 32 divisors (see below), whose sum is σ = 26093137824. Its totient is φ = 3859325952.
The previous prime is 12311680397. The next prime is 12311680427. The reversal of 12311680398 is 89308611321.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12311680397) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77386 + ... + 174962.
It is an arithmetic number, because the mean of its divisors is an integer number (815410557).
Almost surely, 212311680398 is an apocalyptic number.
12311680398 is an abundant number, since it is smaller than the sum of its proper divisors (13781457426).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12311680398 is a wasteful number, since it uses less digits than its factorization.
12311680398 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 98836.
The product of its (nonzero) digits is 62208, while the sum is 42.
The spelling of 12311680398 in words is "twelve billion, three hundred eleven million, six hundred eighty thousand, three hundred ninety-eight".
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