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12357012469 = 43287372383
BaseRepresentation
bin10111000001000100…
…10000101111110101
31011220011220021101111
423200202100233311
5200301343344334
65402101355021
7615134605264
oct134042205765
934804807344
1012357012469
1152712363aa
12248a408a71
13121c1047c9
148531d25db
154c4c92064
hex2e0890bf5

12357012469 has 4 divisors (see below), whose sum is σ = 12644384896. Its totient is φ = 12069640044.

The previous prime is 12357012467. The next prime is 12357012571. The reversal of 12357012469 is 96421075321.

It is a happy number.

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: 96421075321 = 180153537521.

It is a cyclic number.

It is not a de Polignac number, because 12357012469 - 21 = 12357012467 is a prime.

It is a super-2 number, since 2×123570124692 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12357012461) 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, 143686149 + ... + 143686234.

It is an arithmetic number, because the mean of its divisors is an integer number (3161096224).

Almost surely, 212357012469 is an apocalyptic number.

It is an amenable number.

12357012469 is a deficient number, since it is larger than the sum of its proper divisors (287372427).

12357012469 is an equidigital number, since it uses as much as digits as its factorization.

12357012469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287372426.

The product of its (nonzero) digits is 90720, while the sum is 40.

The spelling of 12357012469 in words is "twelve billion, three hundred fifty-seven million, twelve thousand, four hundred sixty-nine".

Divisors: 1 43 287372383 12357012469