Search a number
-
+
12131330200 = 2352115514241
BaseRepresentation
bin10110100110001010…
…10110100010011000
31011022110020102111221
423103011112202120
5144321110031300
65323440301424
7606424414423
oct132305264230
934273212457
1012131330200
115165901a30
122426911874
1311b44278c2
148312469ba
154b006331a
hex2d3156898

12131330200 has 48 divisors (see below), whose sum is σ = 30769470360. Its totient is φ = 4411392000.

The previous prime is 12131330191. The next prime is 12131330201. The reversal of 12131330200 is 203313121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12131330201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2754921 + ... + 2759320.

Almost surely, 212131330200 is an apocalyptic number.

12131330200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12131330200 is an abundant number, since it is smaller than the sum of its proper divisors (18638140160).

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

12131330200 is a wasteful number, since it uses less digits than its factorization.

12131330200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5514268 (or 5514259 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 12131330200 its reverse (203313121), we get a palindrome (12334643321).

The spelling of 12131330200 in words is "twelve billion, one hundred thirty-one million, three hundred thirty thousand, two hundred".

Divisors: 1 2 4 5 8 10 11 20 22 25 40 44 50 55 88 100 110 200 220 275 440 550 1100 2200 5514241 11028482 22056964 27571205 44113928 55142410 60656651 110284820 121313302 137856025 220569640 242626604 275712050 303283255 485253208 551424100 606566510 1102848200 1213133020 1516416275 2426266040 3032832550 6065665100 12131330200