Base | Representation |
---|---|
bin | 1111100011101… |
… | …10100010011101 |
3 | 100002120112122002 |
4 | 13301312202131 |
5 | 231402241312 |
6 | 20541132045 |
7 | 3143210405 |
oct | 761664235 |
9 | 302515562 |
10 | 130508957 |
11 | 6773a347 |
12 | 3785a025 |
13 | 21066347 |
14 | 13493805 |
15 | b6ce4c2 |
hex | 7c7689d |
130508957 has 2 divisors, whose sum is σ = 130508958. Its totient is φ = 130508956.
The previous prime is 130508933. The next prime is 130509023. The reversal of 130508957 is 759805031.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 96157636 + 34351321 = 9806^2 + 5861^2 .
It is an emirp because it is prime and its reverse (759805031) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 130508957 - 210 = 130507933 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 130508957.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (130568957) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65254478 + 65254479.
It is an arithmetic number, because the mean of its divisors is an integer number (65254479).
Almost surely, 2130508957 is an apocalyptic number.
It is an amenable number.
130508957 is a deficient number, since it is larger than the sum of its proper divisors (1).
130508957 is an equidigital number, since it uses as much as digits as its factorization.
130508957 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 37800, while the sum is 38.
The square root of 130508957 is about 11424.0516893088. The cubic root of 130508957 is about 507.2399366435.
The spelling of 130508957 in words is "one hundred thirty million, five hundred eight thousand, nine hundred fifty-seven".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.071 sec. • engine limits •