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12834865469 = 53242167273
BaseRepresentation
bin10111111010000010…
…01000000100111101
31020010111001201110202
423331001020010331
5202241211143334
65521331413245
7633026361566
oct137501100475
936114051422
1012834865469
115496a46438
1225a2454225
13129710416a
1489a86116d
15501bd317e
hex2fd04813d

12834865469 has 4 divisors (see below), whose sum is σ = 13077032796. Its totient is φ = 12592698144.

The previous prime is 12834865451. The next prime is 12834865493. The reversal of 12834865469 is 96456843821.

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 7438200025 + 5396665444 = 86245^2 + 73462^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12834865469 is a prime.

It is a super-2 number, since 2×128348654692 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12834865409) 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, 121083584 + ... + 121083689.

It is an arithmetic number, because the mean of its divisors is an integer number (3269258199).

Almost surely, 212834865469 is an apocalyptic number.

It is an amenable number.

12834865469 is a deficient number, since it is larger than the sum of its proper divisors (242167327).

12834865469 is an equidigital number, since it uses as much as digits as its factorization.

12834865469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242167326.

The product of its digits is 9953280, while the sum is 56.

The spelling of 12834865469 in words is "twelve billion, eight hundred thirty-four million, eight hundred sixty-five thousand, four hundred sixty-nine".

Divisors: 1 53 242167273 12834865469