Base | Representation |
---|---|
bin | 11010111001011011… |
… | …110101111111000111 |
3 | 2202112202111002222022 |
4 | 122321123311333013 |
5 | 433122001402001 |
6 | 21133453353355 |
7 | 2041460331632 |
oct | 327133657707 |
9 | 82482432868 |
10 | 28880887751 |
11 | 11280565481 |
12 | 572019885b |
13 | 29535820c1 |
14 | 157d972c19 |
15 | b4076a11b |
hex | 6b96f5fc7 |
28880887751 has 2 divisors, whose sum is σ = 28880887752. Its totient is φ = 28880887750.
The previous prime is 28880887741. The next prime is 28880887753. The reversal of 28880887751 is 15778808882.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 28880887751 - 226 = 28813778887 is a prime.
Together with 28880887753, it forms a pair of twin primes.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (28880887753) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14440443875 + 14440443876.
It is an arithmetic number, because the mean of its divisors is an integer number (14440443876).
Almost surely, 228880887751 is an apocalyptic number.
28880887751 is a deficient number, since it is larger than the sum of its proper divisors (1).
28880887751 is an equidigital number, since it uses as much as digits as its factorization.
28880887751 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 16056320, while the sum is 62.
The spelling of 28880887751 in words is "twenty-eight billion, eight hundred eighty million, eight hundred eighty-seven thousand, seven hundred fifty-one".
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