Base | Representation |
---|---|
bin | 111100101111110110… |
… | …1110010101101010101 |
3 | 110110201121211110021221 |
4 | 1321133231302231111 |
5 | 4114132420433311 |
6 | 135532524210341 |
7 | 12265536000445 |
oct | 1713755625525 |
9 | 413647743257 |
10 | 130454858581 |
11 | 50364404113 |
12 | 213490999b1 |
13 | c3c01b2b18 |
14 | 6457a70125 |
15 | 35d7c61671 |
hex | 1e5fb72b55 |
130454858581 has 2 divisors, whose sum is σ = 130454858582. Its totient is φ = 130454858580.
The previous prime is 130454858557. The next prime is 130454858617. The reversal of 130454858581 is 185858454031.
It is a happy number.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 113764544100 + 16690314481 = 337290^2 + 129191^2 .
It is a cyclic number.
It is not a de Polignac number, because 130454858581 - 231 = 128307374933 is a prime.
It is a super-2 number, since 2×1304548585812 (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 (130454858881) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65227429290 + 65227429291.
It is an arithmetic number, because the mean of its divisors is an integer number (65227429291).
Almost surely, 2130454858581 is an apocalyptic number.
It is an amenable number.
130454858581 is a deficient number, since it is larger than the sum of its proper divisors (1).
130454858581 is an equidigital number, since it uses as much as digits as its factorization.
130454858581 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 3072000, while the sum is 52.
The spelling of 130454858581 in words is "one hundred thirty billion, four hundred fifty-four million, eight hundred fifty-eight thousand, five hundred eighty-one".
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