Base | Representation |
---|---|
bin | 1111100110010… |
… | …01111110000001 |
3 | 100010012220101211 |
4 | 13303021332001 |
5 | 231444210224 |
6 | 20552330121 |
7 | 3146132614 |
oct | 763117601 |
9 | 303186354 |
10 | 130850689 |
11 | 67953072 |
12 | 379a3941 |
13 | 21155a58 |
14 | 1354217b |
15 | b74a894 |
hex | 7cc9f81 |
130850689 has 2 divisors, whose sum is σ = 130850690. Its totient is φ = 130850688.
The previous prime is 130850669. The next prime is 130850729. The reversal of 130850689 is 986058031.
It is a happy number.
It is an a-pointer prime, because the next prime (130850729) can be obtained adding 130850689 to its sum of digits (40).
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 118635664 + 12215025 = 10892^2 + 3495^2 .
It is a cyclic number.
It is not a de Polignac number, because 130850689 - 27 = 130850561 is a prime.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (130850669) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65425344 + 65425345.
It is an arithmetic number, because the mean of its divisors is an integer number (65425345).
Almost surely, 2130850689 is an apocalyptic number.
It is an amenable number.
130850689 is a deficient number, since it is larger than the sum of its proper divisors (1).
130850689 is an equidigital number, since it uses as much as digits as its factorization.
130850689 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 51840, while the sum is 40.
The square root of 130850689 is about 11438.9986012762. The cubic root of 130850689 is about 507.6822793179.
The spelling of 130850689 in words is "one hundred thirty million, eight hundred fifty thousand, six hundred eighty-nine".
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