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12106807 = 37327211
BaseRepresentation
bin101110001011…
…110000110111
3211210002102021
4232023300313
511044404212
61111254011
7204622546
oct56136067
924702367
1012106807
11691a029
12407a307
13267b7bb
14187215d
1510e2307
hexb8bc37

12106807 has 4 divisors (see below), whose sum is σ = 12434056. Its totient is φ = 11779560.

The previous prime is 12106799. The next prime is 12106811. The reversal of 12106807 is 70860121.

12106807 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, and also an emirpimes, since its reverse is a distinct semiprime: 70860121 = 591201019.

It is a cyclic number.

It is not a de Polignac number, because 12106807 - 23 = 12106799 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 (12106817) 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, 163569 + ... + 163642.

It is an arithmetic number, because the mean of its divisors is an integer number (3108514).

Almost surely, 212106807 is an apocalyptic number.

12106807 is a deficient number, since it is larger than the sum of its proper divisors (327249).

12106807 is an equidigital number, since it uses as much as digits as its factorization.

12106807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327248.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 12106807 is about 3479.4837260720. The cubic root of 12106807 is about 229.6200848350.

Adding to 12106807 its reverse (70860121), we get a palindrome (82966928).

The spelling of 12106807 in words is "twelve million, one hundred six thousand, eight hundred seven".

Divisors: 1 37 327211 12106807