Base | Representation |
---|---|
bin | 11110010010101… |
… | …00101001110001 |
3 | 122201010201120222 |
4 | 33021110221301 |
5 | 1010022232004 |
6 | 41114142425 |
7 | 6203555351 |
oct | 1711245161 |
9 | 581121528 |
10 | 254102129 |
11 | 120485766 |
12 | 71121a15 |
13 | 4084a8b8 |
14 | 25a66b61 |
15 | 174947be |
hex | f254a71 |
254102129 has 2 divisors, whose sum is σ = 254102130. Its totient is φ = 254102128.
The previous prime is 254102119. The next prime is 254102159. The reversal of 254102129 is 921201452.
254102129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 235162225 + 18939904 = 15335^2 + 4352^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-254102129 is a prime.
It is a Chen prime.
It is a junction number, because it is equal to n+sod(n) for n = 254102098 and 254102107.
It is not a weakly prime, because it can be changed into another prime (254102119) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127051064 + 127051065.
It is an arithmetic number, because the mean of its divisors is an integer number (127051065).
Almost surely, 2254102129 is an apocalyptic number.
It is an amenable number.
254102129 is a deficient number, since it is larger than the sum of its proper divisors (1).
254102129 is an equidigital number, since it uses as much as digits as its factorization.
254102129 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 1440, while the sum is 26.
The square root of 254102129 is about 15940.5812001947. The cubic root of 254102129 is about 633.3874217579.
The spelling of 254102129 in words is "two hundred fifty-four million, one hundred two thousand, one hundred twenty-nine".
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