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12070855 = 52414171
BaseRepresentation
bin101110000010…
…111111000111
3211201021002201
4232002333013
511042231410
61110415331
7204412666
oct56027707
924637081
1012070855
1168a5015
124061547
132668324
141862ddd
1510d683a
hexb82fc7

12070855 has 4 divisors (see below), whose sum is σ = 14485032. Its totient is φ = 9656680.

The previous prime is 12070853. The next prime is 12070897. The reversal of 12070855 is 55807021.

12070855 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12070855 - 21 = 12070853 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 (12070853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1207081 + ... + 1207090.

It is an arithmetic number, because the mean of its divisors is an integer number (3621258).

Almost surely, 212070855 is an apocalyptic number.

12070855 is a deficient number, since it is larger than the sum of its proper divisors (2414177).

12070855 is an equidigital number, since it uses as much as digits as its factorization.

12070855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2414176.

The product of its (nonzero) digits is 2800, while the sum is 28.

The square root of 12070855 is about 3474.3136012744. The cubic root of 12070855 is about 229.3925685747.

Adding to 12070855 its reverse (55807021), we get a palindrome (67877876).

The spelling of 12070855 in words is "twelve million, seventy thousand, eight hundred fifty-five".

Divisors: 1 5 2414171 12070855