Base | Representation |
---|---|
bin | 11110001011111… |
… | …00001000011100 |
3 | 122122110200000222 |
4 | 33011330020130 |
5 | 1004310342020 |
6 | 41043140512 |
7 | 6163202624 |
oct | 1705741034 |
9 | 578420028 |
10 | 253215260 |
11 | 11aa2a411 |
12 | 70974738 |
13 | 405ca01c |
14 | 258b5884 |
15 | 1736bb25 |
hex | f17c21c |
253215260 has 12 divisors (see below), whose sum is σ = 531752088. Its totient is φ = 101286096.
The previous prime is 253215247. The next prime is 253215293. The reversal of 253215260 is 62512352.
253215260 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a super-4 number, since 4×2532152604 (a number of 35 digits) contains 4444 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6330362 + ... + 6330401.
It is an arithmetic number, because the mean of its divisors is an integer number (44312674).
Almost surely, 2253215260 is an apocalyptic number.
253215260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
253215260 is an abundant number, since it is smaller than the sum of its proper divisors (278536828).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
253215260 is a wasteful number, since it uses less digits than its factorization.
253215260 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 12660772 (or 12660770 counting only the distinct ones).
The product of its (nonzero) digits is 3600, while the sum is 26.
The square root of 253215260 is about 15912.7389220084. The cubic root of 253215260 is about 632.6496784188.
The spelling of 253215260 in words is "two hundred fifty-three million, two hundred fifteen thousand, two hundred sixty".
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