Base | Representation |
---|---|
bin | 1111100010000… |
… | …11000001011101 |
3 | 100002011211011222 |
4 | 13301003001131 |
5 | 231324013244 |
6 | 20532423125 |
7 | 3141341255 |
oct | 761030135 |
9 | 302154158 |
10 | 130297949 |
11 | 67605861 |
12 | 37777aa5 |
13 | 20cc12a2 |
14 | 1343a965 |
15 | b68bbee |
hex | 7c4305d |
130297949 has 2 divisors, whose sum is σ = 130297950. Its totient is φ = 130297948.
The previous prime is 130297933. The next prime is 130297963. The reversal of 130297949 is 949792031.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 121992025 + 8305924 = 11045^2 + 2882^2 .
It is a cyclic number.
It is not a de Polignac number, because 130297949 - 24 = 130297933 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (130297969) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65148974 + 65148975.
It is an arithmetic number, because the mean of its divisors is an integer number (65148975).
Almost surely, 2130297949 is an apocalyptic number.
It is an amenable number.
130297949 is a deficient number, since it is larger than the sum of its proper divisors (1).
130297949 is an equidigital number, since it uses as much as digits as its factorization.
130297949 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 122472, while the sum is 44.
The square root of 130297949 is about 11414.8127010477. The cubic root of 130297949 is about 506.9664192234.
The spelling of 130297949 in words is "one hundred thirty million, two hundred ninety-seven thousand, nine hundred forty-nine".
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