Search a number
-
+
12112213110 = 235403740437
BaseRepresentation
bin10110100011111000…
…11011010001110110
31011021010021011210120
423101330123101312
5144301211304420
65321514432410
7606103053444
oct132174332166
934233234716
1012112213110
115156034a88
122420432706
1311b049330a
1482c8abb94
154ad538d40
hex2d1f1b476

12112213110 has 16 divisors (see below), whose sum is σ = 29069311536. Its totient is φ = 3229923488.

The previous prime is 12112213097. The next prime is 12112213147. The reversal of 12112213110 is 1131221121.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12112213110.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201870189 + ... + 201870248.

It is an arithmetic number, because the mean of its divisors is an integer number (1816831971).

Almost surely, 212112213110 is an apocalyptic number.

12112213110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12112213110 is an abundant number, since it is smaller than the sum of its proper divisors (16957098426).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12112213110 is a wasteful number, since it uses less digits than its factorization.

12112213110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403740447.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 12112213110 its reverse (1131221121), we get a palindrome (13243434231).

The spelling of 12112213110 in words is "twelve billion, one hundred twelve million, two hundred thirteen thousand, one hundred ten".

Divisors: 1 2 3 5 6 10 15 30 403740437 807480874 1211221311 2018702185 2422442622 4037404370 6056106555 12112213110