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12092940287 = 25733469939
BaseRepresentation
bin10110100001100101…
…11001111111111111
31011012210000000110022
423100302321333333
5144231243042122
65315545402355
7605450203451
oct132062717777
934183000408
1012092940287
11514617102a
122415a993bb
1311a94a5b8c
1482a0d22d1
154ab9cd642
hex2d0cb9fff

12092940287 has 4 divisors (see below), whose sum is σ = 12093435960. Its totient is φ = 12092444616.

The previous prime is 12092940271. The next prime is 12092940311. The reversal of 12092940287 is 78204929021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78204929021 = 131596984191.

It is a cyclic number.

It is not a de Polignac number, because 12092940287 - 24 = 12092940271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12092940227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209237 + ... + 260702.

It is an arithmetic number, because the mean of its divisors is an integer number (3023358990).

Almost surely, 212092940287 is an apocalyptic number.

12092940287 is a deficient number, since it is larger than the sum of its proper divisors (495673).

12092940287 is an equidigital number, since it uses as much as digits as its factorization.

12092940287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495672.

The product of its (nonzero) digits is 145152, while the sum is 44.

The spelling of 12092940287 in words is "twelve billion, ninety-two million, nine hundred forty thousand, two hundred eighty-seven".

Divisors: 1 25733 469939 12092940287