Base | Representation |
---|---|
bin | 111101111111010… |
… | …0111011101111101 |
3 | 12100221220120021022 |
4 | 1323332213131331 |
5 | 13224440342112 |
6 | 542221513525 |
7 | 102354545246 |
oct | 17376473575 |
9 | 5327816238 |
10 | 2080012157 |
11 | 978126a13 |
12 | 4a07128a5 |
13 | 271c10132 |
14 | 15a365ccd |
15 | c2919d72 |
hex | 7bfa777d |
2080012157 has 2 divisors, whose sum is σ = 2080012158. Its totient is φ = 2080012156.
The previous prime is 2080012133. The next prime is 2080012171. The reversal of 2080012157 is 7512100802.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 1209231076 + 870781081 = 34774^2 + 29509^2 .
It is a cyclic number.
It is not a de Polignac number, because 2080012157 - 212 = 2080008061 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (2080012117) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1040006078 + 1040006079.
It is an arithmetic number, because the mean of its divisors is an integer number (1040006079).
Almost surely, 22080012157 is an apocalyptic number.
It is an amenable number.
2080012157 is a deficient number, since it is larger than the sum of its proper divisors (1).
2080012157 is an equidigital number, since it uses as much as digits as its factorization.
2080012157 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1120, while the sum is 26.
The square root of 2080012157 is about 45607.1502837000. The cubic root of 2080012157 is about 1276.5033466936.
Adding to 2080012157 its reverse (7512100802), we get a palindrome (9592112959).
The spelling of 2080012157 in words is "two billion, eighty million, twelve thousand, one hundred fifty-seven".
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