Base | Representation |
---|---|
bin | 1001011110100001… |
… | …10010110101101101 |
3 | 111010120210001022022 |
4 | 10233100302311231 |
5 | 40410000231424 |
6 | 2200511155525 |
7 | 240040266515 |
oct | 45720626555 |
9 | 14116701268 |
10 | 5087898989 |
11 | 2180a938a8 |
12 | b9bb15ba5 |
13 | 631126424 |
14 | 363a22845 |
15 | 1eba1a95e |
hex | 12f432d6d |
5087898989 has 2 divisors, whose sum is σ = 5087898990. Its totient is φ = 5087898988.
The previous prime is 5087898973. The next prime is 5087899007. The reversal of 5087898989 is 9898987805.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 4686497764 + 401401225 = 68458^2 + 20035^2 .
It is a cyclic number.
It is not a de Polignac number, because 5087898989 - 24 = 5087898973 is a prime.
It is a super-2 number, since 2×50878989892 = 51773432244534444242, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (5087898089) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2543949494 + 2543949495.
It is an arithmetic number, because the mean of its divisors is an integer number (2543949495).
Almost surely, 25087898989 is an apocalyptic number.
It is an amenable number.
5087898989 is a deficient number, since it is larger than the sum of its proper divisors (1).
5087898989 is an equidigital number, since it uses as much as digits as its factorization.
5087898989 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 104509440, while the sum is 71.
The square root of 5087898989 is about 71329.5099450431. The cubic root of 5087898989 is about 1719.9381387748.
The spelling of 5087898989 in words is "five billion, eighty-seven million, eight hundred ninety-eight thousand, nine hundred eighty-nine".
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