Base | Representation |
---|---|
bin | 11111000000111111111001 |
3 | 120022002000121 |
4 | 133000333321 |
5 | 4040134203 |
6 | 450133241 |
7 | 126052144 |
oct | 37007771 |
9 | 16262017 |
10 | 8130553 |
11 | 4653672 |
12 | 2881221 |
13 | 18b89a2 |
14 | 111905b |
15 | aa90bd |
hex | 7c0ff9 |
8130553 has 2 divisors, whose sum is σ = 8130554. Its totient is φ = 8130552.
The previous prime is 8130547. The next prime is 8130581. The reversal of 8130553 is 3550318.
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., 6697744 + 1432809 = 2588^2 + 1197^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-8130553 is a prime.
It is a super-2 number, since 2×81305532 = 132211784171618, which contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (8130583) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4065276 + 4065277.
It is an arithmetic number, because the mean of its divisors is an integer number (4065277).
Almost surely, 28130553 is an apocalyptic number.
It is an amenable number.
8130553 is a deficient number, since it is larger than the sum of its proper divisors (1).
8130553 is an equidigital number, since it uses as much as digits as its factorization.
8130553 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 1800, while the sum is 25.
The square root of 8130553 is about 2851.4124570114. The cubic root of 8130553 is about 201.0820766589.
Subtracting from 8130553 its sum of digits (25), we obtain a triangular number (8130528 = T4032).
The spelling of 8130553 in words is "eight million, one hundred thirty thousand, five hundred fifty-three".
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