Base | Representation |
---|---|
bin | 111100010110011… |
… | …0000110011110101 |
3 | 12020010101200000201 |
4 | 1320230300303311 |
5 | 13121400001211 |
6 | 532534440501 |
7 | 101116134421 |
oct | 17054606365 |
9 | 5203350021 |
10 | 2025000181 |
11 | 94a072676 |
12 | 486203131 |
13 | 2636bb679 |
14 | 152d25b81 |
15 | bcba00c1 |
hex | 78b30cf5 |
2025000181 has 2 divisors, whose sum is σ = 2025000182. Its totient is φ = 2025000180.
The previous prime is 2025000167. The next prime is 2025000199. The reversal of 2025000181 is 1810005202.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 1743062500 + 281937681 = 41750^2 + 16791^2 .
It is a cyclic number.
It is not a de Polignac number, because 2025000181 - 213 = 2024991989 is a prime.
It is a super-2 number, since 2×20250001812 = 8201251466100065522, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (2025000881) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1012500090 + 1012500091.
It is an arithmetic number, because the mean of its divisors is an integer number (1012500091).
Almost surely, 22025000181 is an apocalyptic number.
It is an amenable number.
2025000181 is a deficient number, since it is larger than the sum of its proper divisors (1).
2025000181 is an equidigital number, since it uses as much as digits as its factorization.
2025000181 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 160, while the sum is 19.
The square root of 2025000181 is about 45000.0020111111. The cubic root of 2025000181 is about 1265.1490356468.
Adding to 2025000181 its reverse (1810005202), we get a palindrome (3835005383).
The spelling of 2025000181 in words is "two billion, twenty-five million, one hundred eighty-one", and thus it is an aban number.
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