Base | Representation |
---|---|
bin | 11101110100111… |
… | …11001100011001 |
3 | 122102211010220112 |
4 | 32322133030121 |
5 | 1003023310040 |
6 | 40454534105 |
7 | 6125530250 |
oct | 1672371431 |
9 | 572733815 |
10 | 250213145 |
11 | 119269926 |
12 | 6b967335 |
13 | 3cab8720 |
14 | 25333797 |
15 | 16e77365 |
hex | ee9f319 |
250213145 has 32 divisors (see below), whose sum is σ = 374277120. Its totient is φ = 156349440.
The previous prime is 250213141. The next prime is 250213151. The reversal of 250213145 is 541312052.
It is not a de Polignac number, because 250213145 - 22 = 250213141 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 250213145.
It is not an unprimeable number, because it can be changed into a prime (250213141) by changing a digit.
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 31 ways as a sum of consecutive naturals, for example, 32465 + ... + 39425.
It is an arithmetic number, because the mean of its divisors is an integer number (11696160).
Almost surely, 2250213145 is an apocalyptic number.
It is an amenable number.
250213145 is a deficient number, since it is larger than the sum of its proper divisors (124063975).
250213145 is a wasteful number, since it uses less digits than its factorization.
250213145 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7065.
The product of its (nonzero) digits is 1200, while the sum is 23.
The square root of 250213145 is about 15818.1271015250. The cubic root of 250213145 is about 630.1395046737.
Adding to 250213145 its reverse (541312052), we get a palindrome (791525197).
The spelling of 250213145 in words is "two hundred fifty million, two hundred thirteen thousand, one hundred forty-five".
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