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12150131500 = 2253131869251
BaseRepresentation
bin10110101000011010…
…00100101100101100
31011100202121122001101
423110031010230230
5144340413202000
65325351252444
7610043261623
oct132415045454
934322548041
1012150131500
1151754836a1
12243107a124
1311b82ab530
1483393c6ba
154b1a28e6a
hex2d4344b2c

12150131500 has 48 divisors (see below), whose sum is σ = 28577124576. Its totient is φ = 4486200000.

The previous prime is 12150131453. The next prime is 12150131519. The reversal of 12150131500 is 513105121.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 928126 + ... + 941125.

It is an arithmetic number, because the mean of its divisors is an integer number (595356762).

Almost surely, 212150131500 is an apocalyptic number.

12150131500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12150131500 is an abundant number, since it is smaller than the sum of its proper divisors (16426993076).

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

12150131500 is a wasteful number, since it uses less digits than its factorization.

12150131500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1869283 (or 1869271 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 19.

Adding to 12150131500 its reverse (513105121), we get a palindrome (12663236621).

The spelling of 12150131500 in words is "twelve billion, one hundred fifty million, one hundred thirty-one thousand, five hundred".

Divisors: 1 2 4 5 10 13 20 25 26 50 52 65 100 125 130 250 260 325 500 650 1300 1625 3250 6500 1869251 3738502 7477004 9346255 18692510 24300263 37385020 46731275 48600526 93462550 97201052 121501315 186925100 233656375 243002630 467312750 486005260 607506575 934625500 1215013150 2430026300 3037532875 6075065750 12150131500