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12140833 = 113107441
BaseRepresentation
bin101110010100…
…000100100001
3211211211002111
4232110010201
511102001313
61112115321
7205124005
oct56240441
924754074
1012140833
116942651
124095b41
132691133
141880705
1510ec43d
hexb94121

12140833 has 4 divisors (see below), whose sum is σ = 12248388. Its totient is φ = 12033280.

The previous prime is 12140831. The next prime is 12140837. The reversal of 12140833 is 33804121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33804121 = 132600317.

It can be written as a sum of positive squares in 2 ways, for example, as 4255969 + 7884864 = 2063^2 + 2808^2 .

It is a cyclic number.

It is not a de Polignac number, because 12140833 - 21 = 12140831 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12140831) 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, 53608 + ... + 53833.

It is an arithmetic number, because the mean of its divisors is an integer number (3062097).

Almost surely, 212140833 is an apocalyptic number.

It is an amenable number.

12140833 is a deficient number, since it is larger than the sum of its proper divisors (107555).

12140833 is a wasteful number, since it uses less digits than its factorization.

12140833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107554.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 12140833 is about 3484.3698138975. The cubic root of 12140833 is about 229.8349982283.

Adding to 12140833 its reverse (33804121), we get a palindrome (45944954).

The spelling of 12140833 in words is "twelve million, one hundred forty thousand, eight hundred thirty-three".

Divisors: 1 113 107441 12140833