Base | Representation |
---|---|
bin | 10110101110010100… |
… | …11110000100000000 |
3 | 1011111020001001211020 |
4 | 23113022132010000 |
5 | 144441120434413 |
6 | 5334323345440 |
7 | 611215265331 |
oct | 132712360400 |
9 | 34436031736 |
10 | 12199780608 |
11 | 51a0504814 |
12 | 2445822280 |
13 | 11c5672cc2 |
14 | 83a384288 |
15 | 4b6084c23 |
hex | 2d729e100 |
12199780608 has 72 divisors (see below), whose sum is σ = 32485520928. Its totient is φ = 4064550912.
The previous prime is 12199780597. The next prime is 12199780633. The reversal of 12199780608 is 80608799121.
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, 2918616 + ... + 2922792.
Almost surely, 212199780608 is an apocalyptic number.
It is an amenable number.
12199780608 is an abundant number, since it is smaller than the sum of its proper divisors (20285740320).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12199780608 is an equidigital number, since it uses as much as digits as its factorization.
12199780608 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 7999 (or 7985 counting only the distinct ones).
The product of its (nonzero) digits is 435456, while the sum is 51.
The spelling of 12199780608 in words is "twelve billion, one hundred ninety-nine million, seven hundred eighty thousand, six hundred eight".
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