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12190367009 = 28143382089
BaseRepresentation
bin10110101101001101…
…00011110100100001
31011110120022210210102
423112212203310201
5144431213221014
65333345512145
7611042260412
oct132646436441
934416283712
1012190367009
115196165187
122442642655
1311c3728322
14839013809
154b53258de
hex2d69a3d21

12190367009 has 4 divisors (see below), whose sum is σ = 12233749380. Its totient is φ = 12146984640.

The previous prime is 12190366967. The next prime is 12190367027. The reversal of 12190367009 is 90076309121.

It is a happy number.

12190367009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6792232225 + 5398134784 = 82415^2 + 73472^2 .

It is a cyclic number.

It is not a de Polignac number, because 12190367009 - 28 = 12190366753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12190367509) 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 3 ways as a sum of consecutive naturals, for example, 21690764 + ... + 21691325.

It is an arithmetic number, because the mean of its divisors is an integer number (3058437345).

Almost surely, 212190367009 is an apocalyptic number.

It is an amenable number.

12190367009 is a deficient number, since it is larger than the sum of its proper divisors (43382371).

12190367009 is an equidigital number, since it uses as much as digits as its factorization.

12190367009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43382370.

The product of its (nonzero) digits is 20412, while the sum is 38.

The spelling of 12190367009 in words is "twelve billion, one hundred ninety million, three hundred sixty-seven thousand, nine".

Divisors: 1 281 43382089 12190367009