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12031331232232 = 23131815871088839
BaseRepresentation
bin1010111100010100001100…
…1110010110100111101000
31120121011222011022121111001
42233011003032112213220
53034110131243412412
641331041155044344
72351143414051624
oct257050316264750
946534864277431
1012031331232232
113919505908364
1214239045a06b4
1369371b806760
142d8468b58184
1515ce68858957
hexaf1433969e8

12031331232232 has 64 divisors (see below), whose sum is σ = 24469893302400. Its totient is φ = 5512830347520.

The previous prime is 12031331232227. The next prime is 12031331232247. The reversal of 12031331232232 is 23223213313021.

It is a happy number.

12031331232232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 12031331232232.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10505269 + ... + 11594107.

It is an arithmetic number, because the mean of its divisors is an integer number (382342082850).

Almost surely, 212031331232232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12031331232232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12234946651200).

12031331232232 is an abundant number, since it is smaller than the sum of its proper divisors (12438562070168).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12031331232232 is a wasteful number, since it uses less digits than its factorization.

12031331232232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1089626 (or 1089622 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 12031331232232 its reverse (23223213313021), we get a palindrome (35254544545253).

The spelling of 12031331232232 in words is "twelve trillion, thirty-one billion, three hundred thirty-one million, two hundred thirty-two thousand, two hundred thirty-two".

Divisors: 1 2 4 8 13 26 52 104 181 362 587 724 1174 1448 2348 2353 4696 4706 7631 9412 15262 18824 30524 61048 106247 212494 424988 849976 1088839 1381211 2177678 2762422 4355356 5524844 8710712 11049688 14154907 28309814 56619628 113239256 197079859 394159718 639148493 788319436 1278296986 1576638872 2556593972 2562038167 5113187944 5124076334 8308930409 10248152668 16617860818 20496305336 33235721636 66471443272 115685877233 231371754466 462743508932 925487017864 1503916404029 3007832808058 6015665616116 12031331232232