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250013825 = 5243232571
BaseRepresentation
bin11101110011011…
…10100010000001
3122102110000111022
432321232202001
51003000420300
640450355225
76124040165
oct1671564201
9572400438
10250013825
111191430a6
126b88bb15
133ca48a99
14252c0ca5
1516e38285
hexee6e881

250013825 has 12 divisors (see below), whose sum is σ = 317228208. Its totient is φ = 195358800.

The previous prime is 250013789. The next prime is 250013861. The reversal of 250013825 is 528310052.

250013825 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (250013789) and next prime (250013861).

It is not a de Polignac number, because 250013825 - 214 = 249997441 is a prime.

It is a super-3 number, since 3×2500138253 (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 250013794 and 250013803.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 115211 + ... + 117360.

It is an arithmetic number, because the mean of its divisors is an integer number (26435684).

Almost surely, 2250013825 is an apocalyptic number.

250013825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

250013825 is a deficient number, since it is larger than the sum of its proper divisors (67214383).

250013825 is a wasteful number, since it uses less digits than its factorization.

250013825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232624 (or 232619 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 250013825 is about 15811.8254796845. The cubic root of 250013825 is about 629.9721370057.

Adding to 250013825 its reverse (528310052), we get a palindrome (778323877).

The spelling of 250013825 in words is "two hundred fifty million, thirteen thousand, eight hundred twenty-five".

Divisors: 1 5 25 43 215 1075 232571 1162855 5814275 10000553 50002765 250013825