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125241313 = 1011240013
BaseRepresentation
bin1110111011100…
…00011111100001
322201122220210011
413131300133201
5224030210223
620232204521
73050351011
oct735603741
9281586704
10125241313
116477171a
1235b39741
131cc407b2
14128c1c41
15aedd80d
hex77707e1

125241313 has 4 divisors (see below), whose sum is σ = 126481428. Its totient is φ = 124001200.

The previous prime is 125241301. The next prime is 125241349. The reversal of 125241313 is 313142521.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 313142521 = 1013100421.

It can be written as a sum of positive squares in 2 ways, for example, as 70006689 + 55234624 = 8367^2 + 7432^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-125241313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125241013) 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, 619906 + ... + 620107.

It is an arithmetic number, because the mean of its divisors is an integer number (31620357).

Almost surely, 2125241313 is an apocalyptic number.

It is an amenable number.

125241313 is a deficient number, since it is larger than the sum of its proper divisors (1240115).

125241313 is a wasteful number, since it uses less digits than its factorization.

125241313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1240114.

The product of its digits is 720, while the sum is 22.

The square root of 125241313 is about 11191.1265295322. The cubic root of 125241313 is about 500.3215438415.

Adding to 125241313 its reverse (313142521), we get a palindrome (438383834).

The spelling of 125241313 in words is "one hundred twenty-five million, two hundred forty-one thousand, three hundred thirteen".

Divisors: 1 101 1240013 125241313