Base | Representation |
---|---|
bin | 11110110000011… |
… | …10001011111001 |
3 | 122222111011011111 |
4 | 33120032023321 |
5 | 1012022222201 |
6 | 41334000321 |
7 | 6252013222 |
oct | 1730161371 |
9 | 588434144 |
10 | 258007801 |
11 | 122703097 |
12 | 724a60a1 |
13 | 415b754c |
14 | 263a2249 |
15 | 179b6b51 |
hex | f60e2f9 |
258007801 has 4 divisors (see below), whose sum is σ = 258139252. Its totient is φ = 257876352.
The previous prime is 258007787. The next prime is 258007807. The reversal of 258007801 is 108700852.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 229492201 + 28515600 = 15149^2 + 5340^2 .
It is a cyclic number.
It is not a de Polignac number, because 258007801 - 221 = 255910649 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (258007807) 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, 62736 + ... + 66721.
It is an arithmetic number, because the mean of its divisors is an integer number (64534813).
Almost surely, 2258007801 is an apocalyptic number.
It is an amenable number.
258007801 is a deficient number, since it is larger than the sum of its proper divisors (131451).
258007801 is a wasteful number, since it uses less digits than its factorization.
258007801 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 131450.
The product of its (nonzero) digits is 4480, while the sum is 31.
The square root of 258007801 is about 16062.6212368965. The cubic root of 258007801 is about 636.6160922459.
The spelling of 258007801 in words is "two hundred fifty-eight million, seven thousand, eight hundred one".
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