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13125607 = 111193237
BaseRepresentation
bin110010000100…
…011111100111
3220200211221121
4302010133213
511330004412
61145154411
7216365035
oct62043747
926624847
1013125607
117455510
12448ba07
132947441
141a59555
151244107
hexc847e7

13125607 has 4 divisors (see below), whose sum is σ = 14318856. Its totient is φ = 11932360.

The previous prime is 13125569. The next prime is 13125611. The reversal of 13125607 is 70652131.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2k-13125607 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 (13125667) 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 3 ways as a sum of consecutive naturals, for example, 596608 + ... + 596629.

It is an arithmetic number, because the mean of its divisors is an integer number (3579714).

Almost surely, 213125607 is an apocalyptic number.

13125607 is a deficient number, since it is larger than the sum of its proper divisors (1193249).

13125607 is a wasteful number, since it uses less digits than its factorization.

13125607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1193248.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 13125607 is about 3622.9279595377. The cubic root of 13125607 is about 235.8883353283. Note that the first 3 decimals are identical.

Adding to 13125607 its reverse (70652131), we get a palindrome (83777738).

The spelling of 13125607 in words is "thirteen million, one hundred twenty-five thousand, six hundred seven".

Divisors: 1 11 1193237 13125607