Base | Representation |
---|---|
bin | 1111100000000… |
… | …01110111001011 |
3 | 100001200021001212 |
4 | 13300001313023 |
5 | 231241443201 |
6 | 20523003335 |
7 | 3136150163 |
oct | 760016713 |
9 | 301607055 |
10 | 130031051 |
11 | 67443287 |
12 | 3766954b |
13 | 20c29967 |
14 | 133ab5a3 |
15 | b637abb |
hex | 7c01dcb |
130031051 has 2 divisors, whose sum is σ = 130031052. Its totient is φ = 130031050.
The previous prime is 130031023. The next prime is 130031053. The reversal of 130031051 is 150130031.
It is a strong prime.
It is an emirp because it is prime and its reverse (150130031) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 130031051 - 214 = 130014667 is a prime.
Together with 130031053, it forms a pair of twin primes.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (130031053) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65015525 + 65015526.
It is an arithmetic number, because the mean of its divisors is an integer number (65015526).
Almost surely, 2130031051 is an apocalyptic number.
130031051 is a deficient number, since it is larger than the sum of its proper divisors (1).
130031051 is an equidigital number, since it uses as much as digits as its factorization.
130031051 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 45, while the sum is 14.
The square root of 130031051 is about 11403.1158461186. The cubic root of 130031051 is about 506.6200315360.
Adding to 130031051 its reverse (150130031), we get a palindrome (280161082).
The spelling of 130031051 in words is "one hundred thirty million, thirty-one thousand, fifty-one".
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