Search a number
-
+
5087898989 is a prime number
BaseRepresentation
bin1001011110100001…
…10010110101101101
3111010120210001022022
410233100302311231
540410000231424
62200511155525
7240040266515
oct45720626555
914116701268
105087898989
112180a938a8
12b9bb15ba5
13631126424
14363a22845
151eba1a95e
hex12f432d6d

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".