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12302100443 = 59208510177
BaseRepresentation
bin10110111010100001…
…10010011111011011
31011202100120110020202
423131100302133123
5200143314203233
65352420412415
7613600062023
oct133520623733
934670513222
1012302100443
115243240166
122473b4710b
131210919699
14849bbaa83
154c0046be8
hex2dd4327db

12302100443 has 4 divisors (see below), whose sum is σ = 12510610680. Its totient is φ = 12093590208.

The previous prime is 12302100431. The next prime is 12302100457. The reversal of 12302100443 is 34400120321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34400120321 = 74914302903.

It is a cyclic number.

It is not a de Polignac number, because 12302100443 - 24 = 12302100427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12302100743) 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, 104255030 + ... + 104255147.

It is an arithmetic number, because the mean of its divisors is an integer number (3127652670).

Almost surely, 212302100443 is an apocalyptic number.

12302100443 is a deficient number, since it is larger than the sum of its proper divisors (208510237).

12302100443 is an equidigital number, since it uses as much as digits as its factorization.

12302100443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208510236.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 12302100443 its reverse (34400120321), we get a palindrome (46702220764).

The spelling of 12302100443 in words is "twelve billion, three hundred two million, one hundred thousand, four hundred forty-three".

Divisors: 1 59 208510177 12302100443