Base | Representation |
---|---|
bin | 11010001011010111… |
… | …000010000100101001 |
3 | 2200112212220222021122 |
4 | 122023113002010221 |
5 | 430031103441401 |
6 | 20525041145025 |
7 | 2013352664162 |
oct | 321327020451 |
9 | 80485828248 |
10 | 28107874601 |
11 | 10a14187234 |
12 | 554532b175 |
13 | 285c38a881 |
14 | 1509030769 |
15 | ae797421b |
hex | 68b5c2129 |
28107874601 has 2 divisors, whose sum is σ = 28107874602. Its totient is φ = 28107874600.
The previous prime is 28107874573. The next prime is 28107874609. The reversal of 28107874601 is 10647870182.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 19002898201 + 9104976400 = 137851^2 + 95420^2 .
It is a cyclic number.
It is not a de Polignac number, because 28107874601 - 218 = 28107612457 is a prime.
It is a super-2 number, since 2×281078746012 (a number of 22 digits) contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (28107874609) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14053937300 + 14053937301.
It is an arithmetic number, because the mean of its divisors is an integer number (14053937301).
Almost surely, 228107874601 is an apocalyptic number.
It is an amenable number.
28107874601 is a deficient number, since it is larger than the sum of its proper divisors (1).
28107874601 is an equidigital number, since it uses as much as digits as its factorization.
28107874601 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 150528, while the sum is 44.
The spelling of 28107874601 in words is "twenty-eight billion, one hundred seven million, eight hundred seventy-four thousand, six hundred one".
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