Base | Representation |
---|---|
bin | 10110111011110001… |
… | …01001010100000000 |
3 | 1011210002020021102211 |
4 | 23131320221110000 |
5 | 200204003023413 |
6 | 5353432351504 |
7 | 614054636113 |
oct | 133570512400 |
9 | 34702207384 |
10 | 12312548608 |
11 | 5249127008 |
12 | 2477545594 |
13 | 1212b37229 |
14 | 84b33a57a |
15 | 4c0e0c83d |
hex | 2dde29500 |
12312548608 has 72 divisors (see below), whose sum is σ = 25327984808. Its totient is φ = 5969313792.
The previous prime is 12312548557. The next prime is 12312548629. The reversal of 12312548608 is 80684521321.
It can be written as a sum of positive squares in 4 ways, for example, as 60715264 + 12251833344 = 7792^2 + 110688^2 .
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2962660 + ... + 2966812.
Almost surely, 212312548608 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 12312548608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12663992404).
12312548608 is an abundant number, since it is smaller than the sum of its proper divisors (13015436200).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12312548608 is an equidigital number, since it uses as much as digits as its factorization.
12312548608 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4519 (or 4505 counting only the distinct ones).
The product of its (nonzero) digits is 92160, while the sum is 40.
The spelling of 12312548608 in words is "twelve billion, three hundred twelve million, five hundred forty-eight thousand, six hundred eight".
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