Base | Representation |
---|---|
bin | 11110001100001… |
… | …01010111011101 |
3 | 122122112120220220 |
4 | 33012011113131 |
5 | 1004313044320 |
6 | 41044031553 |
7 | 6163421121 |
oct | 1706052735 |
9 | 578476826 |
10 | 253253085 |
11 | 11aa55878 |
12 | 709925b9 |
13 | 406112c7 |
14 | 258c5581 |
15 | 17377e40 |
hex | f1855dd |
253253085 has 32 divisors (see below), whose sum is σ = 420819840. Its totient is φ = 129900288.
The previous prime is 253253081. The next prime is 253253087. The reversal of 253253085 is 580352352.
It is not a de Polignac number, because 253253085 - 22 = 253253081 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 (253253081) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 126462 + ... + 128448.
It is an arithmetic number, because the mean of its divisors is an integer number (13150620).
Almost surely, 2253253085 is an apocalyptic number.
It is an amenable number.
253253085 is a deficient number, since it is larger than the sum of its proper divisors (167566755).
253253085 is a wasteful number, since it uses less digits than its factorization.
253253085 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2317.
The product of its (nonzero) digits is 36000, while the sum is 33.
The square root of 253253085 is about 15913.9273908109. The cubic root of 253253085 is about 632.6811783405.
The spelling of 253253085 in words is "two hundred fifty-three million, two hundred fifty-three thousand, eighty-five".
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