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126025313 = 157802709
BaseRepresentation
bin1111000001011…
…11111001100001
322210010202020012
413200233321201
5224230302223
620301054305
73060124511
oct740577141
9283122205
10126025313
1165157757
1236257395
13201565bb
1412a47841
15b0e5c78
hex782fe61

126025313 has 4 divisors (see below), whose sum is σ = 126828180. Its totient is φ = 125222448.

The previous prime is 126025297. The next prime is 126025321. The reversal of 126025313 is 313520621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 313520621 = 505162071.

It can be written as a sum of positive squares in 2 ways, for example, as 84125584 + 41899729 = 9172^2 + 6473^2 .

It is a cyclic number.

It is not a de Polignac number, because 126025313 - 24 = 126025297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (126024313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 401198 + ... + 401511.

It is an arithmetic number, because the mean of its divisors is an integer number (31707045).

Almost surely, 2126025313 is an apocalyptic number.

It is an amenable number.

126025313 is a deficient number, since it is larger than the sum of its proper divisors (802867).

126025313 is an equidigital number, since it uses as much as digits as its factorization.

126025313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802866.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 126025313 is about 11226.0996343343. The cubic root of 126025313 is about 501.3633631032.

Adding to 126025313 its reverse (313520621), we get a palindrome (439545934).

The spelling of 126025313 in words is "one hundred twenty-six million, twenty-five thousand, three hundred thirteen".

Divisors: 1 157 802709 126025313