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12352404133 = 71173977523
BaseRepresentation
bin10111000000100001…
…01011101010100101
31011212212020010221101
423200100223222211
5200244203413013
65401414520101
7615050463016
oct134020535245
934785203841
1012352404133
115269679063
122488966031
13121b180094
1485275300d
154c46818dd
hex2e042baa5

12352404133 has 4 divisors (see below), whose sum is σ = 12526381728. Its totient is φ = 12178426540.

The previous prime is 12352404121. The next prime is 12352404139. The reversal of 12352404133 is 33140425321.

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: 33140425321 = 61543285661.

It is a cyclic number.

It is not a de Polignac number, because 12352404133 - 229 = 11815533221 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 (12352404139) 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, 86988691 + ... + 86988832.

It is an arithmetic number, because the mean of its divisors is an integer number (3131595432).

Almost surely, 212352404133 is an apocalyptic number.

It is an amenable number.

12352404133 is a deficient number, since it is larger than the sum of its proper divisors (173977595).

12352404133 is an equidigital number, since it uses as much as digits as its factorization.

12352404133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173977594.

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 12352404133 its reverse (33140425321), we get a palindrome (45492829454).

The spelling of 12352404133 in words is "twelve billion, three hundred fifty-two million, four hundred four thousand, one hundred thirty-three".

Divisors: 1 71 173977523 12352404133