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12382231 = 53307761
BaseRepresentation
bin101111001111…
…000000010111
3212022002020011
4233033000113
511132212411
61121221051
7210150541
oct57170027
925262204
1012382231
116a97a54
124191787
132746c84
141904691
151148c21
hexbcf017

12382231 has 8 divisors (see below), whose sum is σ = 12673584. Its totient is φ = 12093120.

The previous prime is 12382229. The next prime is 12382241. The reversal of 12382231 is 13228321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12382231 - 21 = 12382229 is a prime.

It is a super-2 number, since 2×123822312 = 306639289074722, which 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 (12382241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15891 + ... + 16651.

It is an arithmetic number, because the mean of its divisors is an integer number (1584198).

Almost surely, 212382231 is an apocalyptic number.

12382231 is a deficient number, since it is larger than the sum of its proper divisors (291353).

12382231 is an equidigital number, since it uses as much as digits as its factorization.

12382231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1121.

The product of its digits is 576, while the sum is 22.

The square root of 12382231 is about 3518.8394393607. The cubic root of 12382231 is about 231.3482936413.

The spelling of 12382231 in words is "twelve million, three hundred eighty-two thousand, two hundred thirty-one".

Divisors: 1 53 307 761 16271 40333 233627 12382231