Base | Representation |
---|---|
bin | 111100101110010111… |
… | …0111110101111101101 |
3 | 110110121010201011110221 |
4 | 1321130232332233231 |
5 | 4114032114312011 |
6 | 135523540131341 |
7 | 12264360560116 |
oct | 1713456765755 |
9 | 413533634427 |
10 | 130404838381 |
11 | 5033914a204 |
12 | 21334396b51 |
13 | c3b2a1b47c |
14 | 645116d20d |
15 | 35d3680971 |
hex | 1e5cbbebed |
130404838381 has 2 divisors, whose sum is σ = 130404838382. Its totient is φ = 130404838380.
The previous prime is 130404838321. The next prime is 130404838427. The reversal of 130404838381 is 183838404031.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 84326352100 + 46078486281 = 290390^2 + 214659^2 .
It is a cyclic number.
It is not a de Polignac number, because 130404838381 - 219 = 130404314093 is a prime.
It is a super-2 number, since 2×1304048383812 (a number of 23 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (130404838301) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65202419190 + 65202419191.
It is an arithmetic number, because the mean of its divisors is an integer number (65202419191).
Almost surely, 2130404838381 is an apocalyptic number.
It is an amenable number.
130404838381 is a deficient number, since it is larger than the sum of its proper divisors (1).
130404838381 is an equidigital number, since it uses as much as digits as its factorization.
130404838381 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 221184, while the sum is 43.
The spelling of 130404838381 in words is "one hundred thirty billion, four hundred four million, eight hundred thirty-eight thousand, three hundred eighty-one".
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