Base | Representation |
---|---|
bin | 1110111100110… |
… | …10010111101001 |
3 | 22201222122002001 |
4 | 13132122113221 |
5 | 224101202331 |
6 | 20240011001 |
7 | 3051664051 |
oct | 736322751 |
9 | 281878061 |
10 | 125412841 |
11 | 64879584 |
12 | 36000a61 |
13 | 1cca08a8 |
14 | 12928561 |
15 | b024561 |
hex | 779a5e9 |
125412841 has 2 divisors, whose sum is σ = 125412842. Its totient is φ = 125412840.
The previous prime is 125412839. The next prime is 125412851. The reversal of 125412841 is 148214521.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 79566400 + 45846441 = 8920^2 + 6771^2 .
It is a cyclic number.
It is not a de Polignac number, because 125412841 - 21 = 125412839 is a prime.
Together with 125412839, it forms a pair of twin primes.
It is a Chen prime.
It is not a weakly prime, because it can be changed into another prime (125412851) 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, 62706420 + 62706421.
It is an arithmetic number, because the mean of its divisors is an integer number (62706421).
Almost surely, 2125412841 is an apocalyptic number.
It is an amenable number.
125412841 is a deficient number, since it is larger than the sum of its proper divisors (1).
125412841 is an equidigital number, since it uses as much as digits as its factorization.
125412841 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 2560, while the sum is 28.
The square root of 125412841 is about 11198.7874790086. The cubic root of 125412841 is about 500.5498497755.
It can be divided in two parts, 125412 and 841, that added together give a triangular number (126253 = T502).
The spelling of 125412841 in words is "one hundred twenty-five million, four hundred twelve thousand, eight hundred forty-one".
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