Base | Representation |
---|---|
bin | 1111100011000… |
… | …01110011111001 |
3 | 100002102020011122 |
4 | 13301201303321 |
5 | 231342032212 |
6 | 20535235025 |
7 | 3142405031 |
oct | 761416371 |
9 | 302366148 |
10 | 130424057 |
11 | 67691585 |
12 | 37818a75 |
13 | 210367ca |
14 | 134708c1 |
15 | b6b4272 |
hex | 7c61cf9 |
130424057 has 2 divisors, whose sum is σ = 130424058. Its totient is φ = 130424056.
The previous prime is 130423981. The next prime is 130424069. The reversal of 130424057 is 750424031.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 116014441 + 14409616 = 10771^2 + 3796^2 .
It is a cyclic number.
It is not a de Polignac number, because 130424057 - 216 = 130358521 is a prime.
It is equal to p7400825 and since 130424057 and 7400825 have the same sum of digits, it is a Honaker prime.
It is not a weakly prime, because it can be changed into another prime (130424087) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65212028 + 65212029.
It is an arithmetic number, because the mean of its divisors is an integer number (65212029).
Almost surely, 2130424057 is an apocalyptic number.
It is an amenable number.
130424057 is a deficient number, since it is larger than the sum of its proper divisors (1).
130424057 is an equidigital number, since it uses as much as digits as its factorization.
130424057 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 3360, while the sum is 26.
The square root of 130424057 is about 11420.3352402633. The cubic root of 130424057 is about 507.1299211747.
Subtracting from 130424057 its sum of digits (26), we obtain a palindrome (130424031).
Adding to 130424057 its reverse (750424031), we get a palindrome (880848088).
The spelling of 130424057 in words is "one hundred thirty million, four hundred twenty-four thousand, fifty-seven".
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