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12231107 = 71747301
BaseRepresentation
bin101110101010…
…000111000011
3212000101220222
4232222013003
511112343412
61114053255
7205651130
oct56520703
925011828
1012231107
1169a4459
12411a22b
1326c3255
1418a5587
151119072
hexbaa1c3

12231107 has 4 divisors (see below), whose sum is σ = 13978416. Its totient is φ = 10483800.

The previous prime is 12231083. The next prime is 12231133. The reversal of 12231107 is 70113221.

12231107 is digitally balanced in base 2, 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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12231107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12231157) 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, 873644 + ... + 873657.

It is an arithmetic number, because the mean of its divisors is an integer number (3494604).

Almost surely, 212231107 is an apocalyptic number.

12231107 is a deficient number, since it is larger than the sum of its proper divisors (1747309).

12231107 is an equidigital number, since it uses as much as digits as its factorization.

12231107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1747308.

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 12231107 is about 3497.2999585394. The cubic root of 12231107 is about 230.4032434580.

Adding to 12231107 its reverse (70113221), we get a palindrome (82344328).

The spelling of 12231107 in words is "twelve million, two hundred thirty-one thousand, one hundred seven".

Divisors: 1 7 1747301 12231107