Base | Representation |
---|---|
bin | 11110110000011… |
… | …11001111101101 |
3 | 122222111101010020 |
4 | 33120033033231 |
5 | 1012022342031 |
6 | 41334032353 |
7 | 6252031662 |
oct | 1730171755 |
9 | 588441106 |
10 | 258012141 |
11 | 122706382 |
12 | 724a86b9 |
13 | 415b950a |
14 | 263a3a69 |
15 | 179b8096 |
hex | f60f3ed |
258012141 has 4 divisors (see below), whose sum is σ = 344016192. Its totient is φ = 172008092.
The previous prime is 258012121. The next prime is 258012151. The reversal of 258012141 is 141210852.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.
It is a cyclic number.
It is not a de Polignac number, because 258012141 - 29 = 258011629 is a prime.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (258012121) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43002021 + ... + 43002026.
It is an arithmetic number, because the mean of its divisors is an integer number (86004048).
Almost surely, 2258012141 is an apocalyptic number.
It is an amenable number.
258012141 is a deficient number, since it is larger than the sum of its proper divisors (86004051).
258012141 is an equidigital number, since it uses as much as digits as its factorization.
258012141 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 86004050.
The product of its (nonzero) digits is 640, while the sum is 24.
The square root of 258012141 is about 16062.7563325850. The cubic root of 258012141 is about 636.6196617740.
Adding to 258012141 its reverse (141210852), we get a palindrome (399222993).
The spelling of 258012141 in words is "two hundred fifty-eight million, twelve thousand, one hundred forty-one".
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