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12330427 = 19762591
BaseRepresentation
bin101111000010…
…010110111011
3212012110011111
4233002112323
511124033202
61120141151
7206543524
oct57022673
925173144
1012330427
116a6203a
1241677b7
132729515
1418cd84b
1511386d7
hexbc25bb

12330427 has 4 divisors (see below), whose sum is σ = 12393216. Its totient is φ = 12267640.

The previous prime is 12330421. The next prime is 12330431. The reversal of 12330427 is 72403321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72403321 = 312335591.

It is a cyclic number.

It is not a de Polignac number, because 12330427 - 23 = 12330419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12330398 and 12330407.

It is not an unprimeable number, because it can be changed into a prime (12330421) 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, 31099 + ... + 31492.

It is an arithmetic number, because the mean of its divisors is an integer number (3098304).

Almost surely, 212330427 is an apocalyptic number.

12330427 is a deficient number, since it is larger than the sum of its proper divisors (62789).

12330427 is an equidigital number, since it uses as much as digits as its factorization.

12330427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62788.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 12330427 is about 3511.4707744761. The cubic root of 12330427 is about 231.0252091701.

Adding to 12330427 its reverse (72403321), we get a palindrome (84733748).

The spelling of 12330427 in words is "twelve million, three hundred thirty thousand, four hundred twenty-seven".

Divisors: 1 197 62591 12330427