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12044233231 = 60072005033
BaseRepresentation
bin10110011011110010…
…00110101000001111
31011002101100102221021
423031321012220033
5144131310430411
65311045415011
7604316202412
oct131571065017
934071312837
1012044233231
115120723768
12240170a467
13119c381134
14823853b79
154a75aba71
hex2cde46a0f

12044233231 has 4 divisors (see below), whose sum is σ = 12046244272. Its totient is φ = 12042222192.

The previous prime is 12044233193. The next prime is 12044233237. The reversal of 12044233231 is 13233244021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13233244021 = 14399196139.

It is a cyclic number.

It is not a de Polignac number, because 12044233231 - 217 = 12044102159 is a prime.

It is a super-2 number, since 2×120442332312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12044233196 and 12044233205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12044233237) 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, 996510 + ... + 1008523.

It is an arithmetic number, because the mean of its divisors is an integer number (3011561068).

Almost surely, 212044233231 is an apocalyptic number.

12044233231 is a deficient number, since it is larger than the sum of its proper divisors (2011041).

12044233231 is an equidigital number, since it uses as much as digits as its factorization.

12044233231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2011040.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 12044233231 its reverse (13233244021), we get a palindrome (25277477252).

The spelling of 12044233231 in words is "twelve billion, forty-four million, two hundred thirty-three thousand, two hundred thirty-one".

Divisors: 1 6007 2005033 12044233231