Base | Representation |
---|---|
bin | 11101100111011… |
… | …00010000001001 |
3 | 122022110122010022 |
4 | 32303230100021 |
5 | 1002044303000 |
6 | 40352430225 |
7 | 6104430311 |
oct | 1663542011 |
9 | 568418108 |
10 | 248431625 |
11 | 1182623a2 |
12 | 6b248375 |
13 | 3c613880 |
14 | 24dcc441 |
15 | 16c24585 |
hex | ecec409 |
248431625 has 72 divisors (see below), whose sum is σ = 370779864. Its totient is φ = 165158400.
The previous prime is 248431621. The next prime is 248431639. The reversal of 248431625 is 526134842.
It can be written as a sum of positive squares in 12 ways, for example, as 151979584 + 96452041 = 12328^2 + 9821^2 .
It is not a de Polignac number, because 248431625 - 22 = 248431621 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 (248431621) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 10801364 + ... + 10801386.
Almost surely, 2248431625 is an apocalyptic number.
248431625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
It is an amenable number.
248431625 is a deficient number, since it is larger than the sum of its proper divisors (122348239).
248431625 is a wasteful number, since it uses less digits than its factorization.
248431625 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 108 (or 58 counting only the distinct ones).
The product of its digits is 46080, while the sum is 35.
The square root of 248431625 is about 15761.7138979237. The cubic root of 248431625 is about 628.6404080512.
The spelling of 248431625 in words is "two hundred forty-eight million, four hundred thirty-one thousand, six hundred twenty-five".
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