Base | Representation |
---|---|
bin | 10111110101011011… |
… | …00111110110010010 |
3 | 1020000210022020002000 |
4 | 23322231213312102 |
5 | 202201311321130 |
6 | 5513430534430 |
7 | 632046614361 |
oct | 137255476622 |
9 | 36023266060 |
10 | 12796198290 |
11 | 5477136197 |
12 | 2591507416 |
13 | 128c0b6185 |
14 | 8956777d8 |
15 | 4ed5e6260 |
hex | 2fab67d92 |
12796198290 has 128 divisors (see below), whose sum is σ = 35589335040. Its totient is φ = 3267993600.
The previous prime is 12796198271. The next prime is 12796198313. The reversal of 12796198290 is 9289169721.
12796198290 is a `hidden beast` number, since 12 + 7 + 9 + 619 + 8 + 2 + 9 + 0 = 666.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is an unprimeable number.
It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 804010 + ... + 819770.
It is an arithmetic number, because the mean of its divisors is an integer number (278041680).
Almost surely, 212796198290 is an apocalyptic number.
12796198290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is a practical number, because each smaller number is the sum of distinct divisors of 12796198290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17794667520).
12796198290 is an abundant number, since it is smaller than the sum of its proper divisors (22793136750).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12796198290 is a wasteful number, since it uses less digits than its factorization.
12796198290 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 15905 (or 15899 counting only the distinct ones).
The product of its (nonzero) digits is 979776, while the sum is 54.
The spelling of 12796198290 in words is "twelve billion, seven hundred ninety-six million, one hundred ninety-eight thousand, two hundred ninety".
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