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12270085 = 514811657
BaseRepresentation
bin101110110011…
…101000000101
3212002101101121
4232303220011
511120120320
61114553541
7206202562
oct56635005
925071347
1012270085
116a20773
1241388b1
132707c09
1418b5869
1511258aa
hexbb3a05

12270085 has 8 divisors (see below), whose sum is σ = 14742936. Its totient is φ = 9803520.

The previous prime is 12270077. The next prime is 12270101. The reversal of 12270085 is 58007221.

12270085 is digitally balanced in base 2, 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 450241 + 11819844 = 671^2 + 3438^2 .

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

It is not a de Polignac number, because 12270085 - 23 = 12270077 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6577 + ... + 8233.

It is an arithmetic number, because the mean of its divisors is an integer number (1842867).

Almost surely, 212270085 is an apocalyptic number.

It is an amenable number.

12270085 is a deficient number, since it is larger than the sum of its proper divisors (2472851).

12270085 is a wasteful number, since it uses less digits than its factorization.

12270085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3143.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 12270085 is about 3502.8681105631. The cubic root of 12270085 is about 230.6477330382.

It can be divided in two parts, 122 and 70085, that added together give a palindrome (70207).

The spelling of 12270085 in words is "twelve million, two hundred seventy thousand, eighty-five".

Divisors: 1 5 1481 1657 7405 8285 2454017 12270085