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12342353453 = 15439799427
BaseRepresentation
bin10110111111010100…
…10101111000101101
31011212011022111222222
423133222111320231
5200234120302303
65400415245125
7614566162523
oct133752257055
934764274888
1012342353453
115263a33911
1224855197a5
131219071431
14851298313
154c3848938
hex2dfa95e2d

12342353453 has 4 divisors (see below), whose sum is σ = 12343168320. Its totient is φ = 12341538588.

The previous prime is 12342353437. The next prime is 12342353467. The reversal of 12342353453 is 35435324321.

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: 35435324321 = 233152082937.

It is a cyclic number.

It is not a de Polignac number, because 12342353453 - 24 = 12342353437 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 (12342353053) 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, 384275 + ... + 415152.

It is an arithmetic number, because the mean of its divisors is an integer number (3085792080).

Almost surely, 212342353453 is an apocalyptic number.

It is an amenable number.

12342353453 is a deficient number, since it is larger than the sum of its proper divisors (814867).

12342353453 is an equidigital number, since it uses as much as digits as its factorization.

12342353453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814866.

The product of its digits is 129600, while the sum is 35.

Adding to 12342353453 its reverse (35435324321), we get a palindrome (47777677774).

The spelling of 12342353453 in words is "twelve billion, three hundred forty-two million, three hundred fifty-three thousand, four hundred fifty-three".

Divisors: 1 15439 799427 12342353453