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12131482459 = 59392042681
BaseRepresentation
bin10110100110001011…
…11011101101011011
31011022110112011101011
423103011323231123
5144321124414314
65323443434351
7606425620345
oct132305735533
934273464334
1012131482459
1151659a6368
1224269859b7
1311b447bcb5
14831286295
154b00934c4
hex2d317bb5b

12131482459 has 4 divisors (see below), whose sum is σ = 12133531080. Its totient is φ = 12129433840.

The previous prime is 12131482427. The next prime is 12131482469. The reversal of 12131482459 is 95428413121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95428413121 = 195022548059.

It is a cyclic number.

It is not a de Polignac number, because 12131482459 - 25 = 12131482427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12131482469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1015402 + ... + 1027279.

It is an arithmetic number, because the mean of its divisors is an integer number (3033382770).

Almost surely, 212131482459 is an apocalyptic number.

12131482459 is a deficient number, since it is larger than the sum of its proper divisors (2048621).

12131482459 is an equidigital number, since it uses as much as digits as its factorization.

12131482459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2048620.

The product of its digits is 69120, while the sum is 40.

The spelling of 12131482459 in words is "twelve billion, one hundred thirty-one million, four hundred eighty-two thousand, four hundred fifty-nine".

Divisors: 1 5939 2042681 12131482459