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12112313320 = 235302807833
BaseRepresentation
bin10110100011111001…
…10011101111101000
31011021010110021021001
423101330303233220
5144301223011240
65321520524344
7606103651552
oct132174635750
934233407231
1012112313320
1151560a32a8
1224204806b4
1311b04c9b03
1482c8d64d2
154ad55889a
hex2d1f33be8

12112313320 has 16 divisors (see below), whose sum is σ = 27252705060. Its totient is φ = 4844925312.

The previous prime is 12112313267. The next prime is 12112313341. The reversal of 12112313320 is 2331321121.

It can be written as a sum of positive squares in 2 ways, for example, as 11755330084 + 356983236 = 108422^2 + 18894^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151403877 + ... + 151403956.

Almost surely, 212112313320 is an apocalyptic number.

12112313320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12112313320 is an abundant number, since it is smaller than the sum of its proper divisors (15140391740).

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

12112313320 is a wasteful number, since it uses less digits than its factorization.

12112313320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302807844 (or 302807840 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 12112313320 its reverse (2331321121), we get a palindrome (14443634441).

The spelling of 12112313320 in words is "twelve billion, one hundred twelve million, three hundred thirteen thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 302807833 605615666 1211231332 1514039165 2422462664 3028078330 6056156660 12112313320