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12519425 = 52500777
BaseRepresentation
bin101111110000…
…100000000001
3212120001102102
4233300200001
511201110200
61124200145
7211261532
oct57604001
925501372
1012519425
117081036
124239055
132794559
14193c689
1511746d5
hexbf0801

12519425 has 6 divisors (see below), whose sum is σ = 15524118. Its totient is φ = 10015520.

The previous prime is 12519421. The next prime is 12519449. The reversal of 12519425 is 52491521.

12519425 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 16129 + 12503296 = 127^2 + 3536^2 .

It is not a de Polignac number, because 12519425 - 22 = 12519421 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 (12519421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 250364 + ... + 250413.

It is an arithmetic number, because the mean of its divisors is an integer number (2587353).

Almost surely, 212519425 is an apocalyptic number.

It is an amenable number.

12519425 is a deficient number, since it is larger than the sum of its proper divisors (3004693).

12519425 is an equidigital number, since it uses as much as digits as its factorization.

12519425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500787 (or 500782 counting only the distinct ones).

The product of its digits is 3600, while the sum is 29.

The square root of 12519425 is about 3538.2799493539. The cubic root of 12519425 is about 232.1995966127.

The spelling of 12519425 in words is "twelve million, five hundred nineteen thousand, four hundred twenty-five".

Divisors: 1 5 25 500777 2503885 12519425