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12130311000 = 233534043437
BaseRepresentation
bin10110100110000010…
…11101101101011000
31011022101022122102210
423103001131231120
5144320324423000
65323402355120
7606412641123
oct132301355530
934271278383
1012130311000
115165276215
1224264bbaa0
1311b415ba22
1483105d3ba
154aee11350
hex2d305db58

12130311000 has 64 divisors (see below), whose sum is σ = 37846579680. Its totient is φ = 3234748800.

The previous prime is 12130310987. The next prime is 12130311007. The reversal of 12130311000 is 11303121.

12130311000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12130311007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2018719 + ... + 2024718.

Almost surely, 212130311000 is an apocalyptic number.

12130311000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12130311000 is an abundant number, since it is smaller than the sum of its proper divisors (25716268680).

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

12130311000 is a wasteful number, since it uses less digits than its factorization.

12130311000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4043461 (or 4043447 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 12130311000 its reverse (11303121), we get a palindrome (12141614121).

The spelling of 12130311000 in words is "twelve billion, one hundred thirty million, three hundred eleven thousand".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 25 30 40 50 60 75 100 120 125 150 200 250 300 375 500 600 750 1000 1500 3000 4043437 8086874 12130311 16173748 20217185 24260622 32347496 40434370 48521244 60651555 80868740 97042488 101085925 121303110 161737480 202171850 242606220 303257775 404343700 485212440 505429625 606515550 808687400 1010859250 1213031100 1516288875 2021718500 2426062200 3032577750 4043437000 6065155500 12130311000