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12313212030 = 2335717222543
BaseRepresentation
bin10110111011110110…
…01011010001111110
31011210010110222111000
423131323023101332
5200204140241110
65353454511130
7614063401230
oct133573132176
934703428430
1012313212030
11524953a499
1224778054a6
13121300a1a2
1484b470250
154c0ede1c0
hex2ddecb47e

12313212030 has 192 divisors, whose sum is σ = 39865006080. Its totient is φ = 2648775168.

The previous prime is 12313212017. The next prime is 12313212071. The reversal of 12313212030 is 3021231321.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12313211994 and 12313212012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 534939 + ... + 557481.

It is an arithmetic number, because the mean of its divisors is an integer number (207630240).

Almost surely, 212313212030 is an apocalyptic number.

12313212030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12313212030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19932503040).

12313212030 is an abundant number, since it is smaller than the sum of its proper divisors (27551794050).

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

12313212030 is a wasteful number, since it uses less digits than its factorization.

12313212030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22600 (or 22577 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 12313212030 its reverse (3021231321), we get a palindrome (15334443351).

The spelling of 12313212030 in words is "twelve billion, three hundred thirteen million, two hundred twelve thousand, thirty".