Base | Representation |
---|---|
bin | 11110001011110… |
… | …11100111000101 |
3 | 122122110120002220 |
4 | 33011323213011 |
5 | 1004310310000 |
6 | 41043122553 |
7 | 6163163454 |
oct | 1705734705 |
9 | 578416086 |
10 | 253213125 |
11 | 11aa28850 |
12 | 70973459 |
13 | 405c9069 |
14 | 258b4b9b |
15 | 1736b1a0 |
hex | f17b9c5 |
253213125 has 40 divisors (see below), whose sum is σ = 460277664. Its totient is φ = 122760000.
The previous prime is 253213109. The next prime is 253213151. The reversal of 253213125 is 521312352.
It is a happy number.
It is not a de Polignac number, because 253213125 - 24 = 253213109 is a prime.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 253213095 and 253213104.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 14487 + ... + 26763.
Almost surely, 2253213125 is an apocalyptic number.
253213125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
It is an amenable number.
253213125 is a deficient number, since it is larger than the sum of its proper divisors (207064539).
253213125 is a wasteful number, since it uses less digits than its factorization.
253213125 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 12311 (or 12296 counting only the distinct ones).
The product of its digits is 1800, while the sum is 24.
The square root of 253213125 is about 15912.6718372497. The cubic root of 253213125 is about 632.6479003389.
Adding to 253213125 its reverse (521312352), we get a palindrome (774525477).
The spelling of 253213125 in words is "two hundred fifty-three million, two hundred thirteen thousand, one hundred twenty-five".
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