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125928397 = 718199391
BaseRepresentation
bin1111000000110…
…00001111001101
322202221211021201
413200120033031
5224214202042
620255025501
73056242120
oct740301715
9282854251
10125928397
11650a0961
123620b291
132012145a
1412a203b7
15b0c71b7
hex78183cd

125928397 has 8 divisors (see below), whose sum is σ = 144714752. Its totient is φ = 107341200.

The previous prime is 125928389. The next prime is 125928403. The reversal of 125928397 is 793829521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125928397 - 23 = 125928389 is a prime.

It is a super-2 number, since 2×1259283972 = 31715922341979218, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125928307) 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 7 ways as a sum of consecutive naturals, for example, 48429 + ... + 50962.

It is an arithmetic number, because the mean of its divisors is an integer number (18089344).

Almost surely, 2125928397 is an apocalyptic number.

It is an amenable number.

125928397 is a deficient number, since it is larger than the sum of its proper divisors (18786355).

125928397 is an equidigital number, since it uses as much as digits as its factorization.

125928397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99579.

The product of its digits is 272160, while the sum is 46.

The square root of 125928397 is about 11221.7822559520. The cubic root of 125928397 is about 501.2348106416.

The spelling of 125928397 in words is "one hundred twenty-five million, nine hundred twenty-eight thousand, three hundred ninety-seven".

Divisors: 1 7 181 1267 99391 695737 17989771 125928397