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125396317 = 831510799
BaseRepresentation
bin1110111100101…
…10010101011101
322201221210102001
413132112111131
5224100140232
620235402301
73051564634
oct736262535
9281853361
10125396317
1164868122
1235bb3391
131cc96207
141292251b
15b01e6e7
hex779655d

125396317 has 4 divisors (see below), whose sum is σ = 126907200. Its totient is φ = 123885436.

The previous prime is 125396311. The next prime is 125396321. The reversal of 125396317 is 713693521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 713693521 = 4129172849.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-125396317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125396311) 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 3 ways as a sum of consecutive naturals, for example, 755317 + ... + 755482.

It is an arithmetic number, because the mean of its divisors is an integer number (31726800).

Almost surely, 2125396317 is an apocalyptic number.

It is an amenable number.

125396317 is a deficient number, since it is larger than the sum of its proper divisors (1510883).

125396317 is an equidigital number, since it uses as much as digits as its factorization.

125396317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1510882.

The product of its digits is 34020, while the sum is 37.

The square root of 125396317 is about 11198.0496962641. The cubic root of 125396317 is about 500.5278651872.

It can be divided in two parts, 12 and 5396317, that added together give a square (5396329 = 23232).

The spelling of 125396317 in words is "one hundred twenty-five million, three hundred ninety-six thousand, three hundred seventeen".

Divisors: 1 83 1510799 125396317