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12935985 = 35862399
BaseRepresentation
bin110001010110…
…001100110001
3220100012211120
4301112030301
511302422420
61141132453
7214645146
oct61261461
926305746
1012935985
117335aa7
1243ba129
1328ac03a
141a0a3cd
151207d40
hexc56331

12935985 has 8 divisors (see below), whose sum is σ = 20697600. Its totient is φ = 6899184.

The previous prime is 12935983. The next prime is 12935999. The reversal of 12935985 is 58953921.

12935985 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12935985 - 21 = 12935983 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12935983) by changing a digit.

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, 431185 + ... + 431214.

It is an arithmetic number, because the mean of its divisors is an integer number (2587200).

Almost surely, 212935985 is an apocalyptic number.

12935985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12935985 is a deficient number, since it is larger than the sum of its proper divisors (7761615).

12935985 is an equidigital number, since it uses as much as digits as its factorization.

12935985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862407.

The product of its digits is 97200, while the sum is 42.

The square root of 12935985 is about 3596.6630367606. The cubic root of 12935985 is about 234.7468830429.

The spelling of 12935985 in words is "twelve million, nine hundred thirty-five thousand, nine hundred eighty-five".

Divisors: 1 3 5 15 862399 2587197 4311995 12935985