Base | Representation |
---|---|
bin | 11110110001011… |
… | …00001000011101 |
3 | 122222201101102110 |
4 | 33120230020131 |
5 | 1012040133321 |
6 | 41340344233 |
7 | 6253033641 |
oct | 1730541035 |
9 | 588641373 |
10 | 258130461 |
11 | 122787266 |
12 | 72545079 |
13 | 4162b324 |
14 | 263d4c21 |
15 | 179dd176 |
hex | f62c21d |
258130461 has 4 divisors (see below), whose sum is σ = 344173952. Its totient is φ = 172086972.
The previous prime is 258130441. The next prime is 258130469. The reversal of 258130461 is 164031852.
258130461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
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 not a de Polignac number, because 258130461 - 25 = 258130429 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (258130469) 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, 43021741 + ... + 43021746.
It is an arithmetic number, because the mean of its divisors is an integer number (86043488).
Almost surely, 2258130461 is an apocalyptic number.
It is an amenable number.
258130461 is a deficient number, since it is larger than the sum of its proper divisors (86043491).
258130461 is an equidigital number, since it uses as much as digits as its factorization.
258130461 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 86043490.
The product of its (nonzero) digits is 5760, while the sum is 30.
The square root of 258130461 is about 16066.4389644999. The cubic root of 258130461 is about 636.7169612355.
The spelling of 258130461 in words is "two hundred fifty-eight million, one hundred thirty thousand, four hundred sixty-one".
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