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12113203200 = 212352743131
BaseRepresentation
bin10110100100000000…
…01101000000000000
31011021012010110221120
423102000031000000
5144301440000300
65321551552240
7606114346140
oct132200150000
934235113846
1012113203200
11515665093a
12242082b680
1311b074bb77
1482ca88920
154ad6823a0
hex2d200d000

12113203200 has 624 divisors, whose sum is σ = 47192741376. Its totient is φ = 2683699200.

The previous prime is 12113203129. The next prime is 12113203237. The reversal of 12113203200 is 230231121.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12113203200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 92467135 + ... + 92467265.

Almost surely, 212113203200 is an apocalyptic number.

12113203200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12113203200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23596370688).

12113203200 is an abundant number, since it is smaller than the sum of its proper divisors (35079538176).

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

12113203200 is a wasteful number, since it uses less digits than its factorization.

12113203200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218 (or 191 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 12113203200 its reverse (230231121), we get a palindrome (12343434321).

The spelling of 12113203200 in words is "twelve billion, one hundred thirteen million, two hundred three thousand, two hundred".