Base | Representation |
---|---|
bin | 11110110111011… |
… | …00111001101111 |
3 | 200001012111112101 |
4 | 33123230321233 |
5 | 1012240420142 |
6 | 41405315531 |
7 | 6262532641 |
oct | 1733547157 |
9 | 601174471 |
10 | 258920047 |
11 | 123176511 |
12 | 72865ba7 |
13 | 41846839 |
14 | 2655c891 |
15 | 17ae70b7 |
hex | f6ece6f |
258920047 has 8 divisors (see below), whose sum is σ = 275222016. Its totient is φ = 242737152.
The previous prime is 258920027. The next prime is 258920083. The reversal of 258920047 is 740029852.
258920047 is nontrivially palindromic in base 16.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 258920047 - 27 = 258919919 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 258919988 and 258920015.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (258920027) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25263 + ... + 34000.
It is an arithmetic number, because the mean of its divisors is an integer number (34402752).
Almost surely, 2258920047 is an apocalyptic number.
258920047 is a deficient number, since it is larger than the sum of its proper divisors (16301969).
258920047 is a wasteful number, since it uses less digits than its factorization.
258920047 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 59537.
The product of its (nonzero) digits is 40320, while the sum is 37.
The square root of 258920047 is about 16090.9927288530. The cubic root of 258920047 is about 637.3655106274.
Adding to 258920047 its reverse (740029852), we get a palindrome (998949899).
The spelling of 258920047 in words is "two hundred fifty-eight million, nine hundred twenty thousand, forty-seven".
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