Base | Representation |
---|---|
bin | 111111100000101… |
… | …0100100011111101 |
3 | 12111111221200212101 |
4 | 1333001110203331 |
5 | 13331022142142 |
6 | 551243505101 |
7 | 103544435626 |
oct | 17701244375 |
9 | 5444850771 |
10 | 2131052797 |
11 | 9a3a18565 |
12 | 4b5828191 |
13 | 27c6710b3 |
14 | 163050a4d |
15 | c714d0b7 |
hex | 7f0548fd |
2131052797 has 2 divisors, whose sum is σ = 2131052798. Its totient is φ = 2131052796.
The previous prime is 2131052789. The next prime is 2131052813. The reversal of 2131052797 is 7972501312.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 1478710116 + 652342681 = 38454^2 + 25541^2 .
It is a cyclic number.
It is not a de Polignac number, because 2131052797 - 23 = 2131052789 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (2131022797) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065526398 + 1065526399.
It is an arithmetic number, because the mean of its divisors is an integer number (1065526399).
Almost surely, 22131052797 is an apocalyptic number.
It is an amenable number.
2131052797 is a deficient number, since it is larger than the sum of its proper divisors (1).
2131052797 is an equidigital number, since it uses as much as digits as its factorization.
2131052797 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 26460, while the sum is 37.
The square root of 2131052797 is about 46163.3274039036. The cubic root of 2131052797 is about 1286.8603005835.
The spelling of 2131052797 in words is "two billion, one hundred thirty-one million, fifty-two thousand, seven hundred ninety-seven".
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