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12485765 = 55214793
BaseRepresentation
bin101111101000…
…010010000101
3212111100020202
4233220102011
511144021030
61123340245
7211061435
oct57502205
925440222
1012485765
117058816
124221685
132782136
1419302c5
151169745
hexbe8485

12485765 has 8 divisors (see below), whose sum is σ = 15014808. Its totient is φ = 9967360.

The previous prime is 12485731. The next prime is 12485779. The reversal of 12485765 is 56758421.

12485765 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 4 ways, for example, as 2033476 + 10452289 = 1426^2 + 3233^2 .

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

It is not a de Polignac number, because 12485765 - 210 = 12484741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209 + ... + 5001.

It is an arithmetic number, because the mean of its divisors is an integer number (1876851).

Almost surely, 212485765 is an apocalyptic number.

It is an amenable number.

12485765 is a deficient number, since it is larger than the sum of its proper divisors (2529043).

12485765 is an equidigital number, since it uses as much as digits as its factorization.

12485765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5319.

The product of its digits is 67200, while the sum is 38.

The square root of 12485765 is about 3533.5201994612. The cubic root of 12485765 is about 231.9913108616.

The spelling of 12485765 in words is "twelve million, four hundred eighty-five thousand, seven hundred sixty-five".

Divisors: 1 5 521 2605 4793 23965 2497153 12485765