Base | Representation |
---|---|
bin | 11110010101001… |
… | …01001101000101 |
3 | 122201202111011222 |
4 | 33022211031011 |
5 | 1010113311234 |
6 | 41125210125 |
7 | 6206431313 |
oct | 1712451505 |
9 | 581674158 |
10 | 254432069 |
11 | 120690641 |
12 | 71260945 |
13 | 40934b28 |
14 | 25b110b3 |
15 | 1750c42e |
hex | f2a5345 |
254432069 has 2 divisors, whose sum is σ = 254432070. Its totient is φ = 254432068.
The previous prime is 254432027. The next prime is 254432071. The reversal of 254432069 is 960234452.
254432069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 235622500 + 18809569 = 15350^2 + 4337^2 .
It is a cyclic number.
It is not a de Polignac number, because 254432069 - 28 = 254431813 is a prime.
It is a super-2 number, since 2×2544320692 = 129471355471241522, which contains 22 as substring.
Together with 254432071, it forms a pair of twin primes.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (254432089) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127216034 + 127216035.
It is an arithmetic number, because the mean of its divisors is an integer number (127216035).
Almost surely, 2254432069 is an apocalyptic number.
It is an amenable number.
254432069 is a deficient number, since it is larger than the sum of its proper divisors (1).
254432069 is an equidigital number, since it uses as much as digits as its factorization.
254432069 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 51840, while the sum is 35.
The square root of 254432069 is about 15950.9269009672. The cubic root of 254432069 is about 633.6614447288.
The spelling of 254432069 in words is "two hundred fifty-four million, four hundred thirty-two thousand, sixty-nine".
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