Base | Representation |
---|---|
bin | 11110001010111… |
… | …01001011100101 |
3 | 122122020020010121 |
4 | 33011131023211 |
5 | 1004242312420 |
6 | 41040321541 |
7 | 6162134206 |
oct | 1705351345 |
9 | 578206117 |
10 | 253088485 |
11 | 11a953141 |
12 | 709132b1 |
13 | 40584400 |
14 | 258815ad |
15 | 173442aa |
hex | f15d2e5 |
253088485 has 12 divisors (see below), whose sum is σ = 328866372. Its totient is φ = 186895488.
The previous prime is 253088477. The next prime is 253088489. The reversal of 253088485 is 584880352.
It can be written as a sum of positive squares in 6 ways, for example, as 80586529 + 172501956 = 8977^2 + 13134^2 .
It is not a de Polignac number, because 253088485 - 23 = 253088477 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 (253088489) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 148912 + ... + 150601.
It is an arithmetic number, because the mean of its divisors is an integer number (27405531).
Almost surely, 2253088485 is an apocalyptic number.
It is an amenable number.
253088485 is a deficient number, since it is larger than the sum of its proper divisors (75777887).
253088485 is a wasteful number, since it uses less digits than its factorization.
253088485 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 299544 (or 299531 counting only the distinct ones).
The product of its (nonzero) digits is 307200, while the sum is 43.
The square root of 253088485 is about 15908.7549795702. The cubic root of 253088485 is about 632.5440797913.
The spelling of 253088485 in words is "two hundred fifty-three million, eighty-eight thousand, four hundred eighty-five".
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