Base | Representation |
---|---|
bin | 10110100010011101… |
… | …10000111111100101 |
3 | 1011020021202001111001 |
4 | 23101032300333211 |
5 | 144240130242204 |
6 | 5320410113301 |
7 | 605566241431 |
oct | 132116607745 |
9 | 34207661431 |
10 | 12100243429 |
11 | 514a2a9a8a |
12 | 241841b831 |
13 | 11aab62071 |
14 | 82b0739c1 |
15 | 4ac4724a4 |
hex | 2d13b0fe5 |
12100243429 has 4 divisors (see below), whose sum is σ = 12187295680. Its totient is φ = 12013191180.
The previous prime is 12100243427. The next prime is 12100243469. The reversal of 12100243429 is 92434200121.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 92434200121 = 31 ⋅2981748391.
It is a cyclic number.
It is not a de Polignac number, because 12100243429 - 21 = 12100243427 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 12100243397 and 12100243406.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12100243427) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43525917 + ... + 43526194.
It is an arithmetic number, because the mean of its divisors is an integer number (3046823920).
Almost surely, 212100243429 is an apocalyptic number.
It is an amenable number.
12100243429 is a deficient number, since it is larger than the sum of its proper divisors (87052251).
12100243429 is an equidigital number, since it uses as much as digits as its factorization.
12100243429 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 87052250.
The product of its (nonzero) digits is 3456, while the sum is 28.
The spelling of 12100243429 in words is "twelve billion, one hundred million, two hundred forty-three thousand, four hundred twenty-nine".
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