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12430441 = 30374093
BaseRepresentation
bin101111011010…
…110001101001
3212101112100201
4233122301221
511140233231
61122232201
7210441232
oct57326151
925345321
1012430441
1170201a1
1241b5661
132762bba
141918089
151158161
hexbdac69

12430441 has 4 divisors (see below), whose sum is σ = 12437572. Its totient is φ = 12423312.

The previous prime is 12430433. The next prime is 12430447. The reversal of 12430441 is 14403421.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 14403421 = 19972379.

It can be written as a sum of positive squares in 2 ways, for example, as 8037225 + 4393216 = 2835^2 + 2096^2 .

It is a cyclic number.

It is not a de Polignac number, because 12430441 - 23 = 12430433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12430447) 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, 991 + ... + 5083.

It is an arithmetic number, because the mean of its divisors is an integer number (3109393).

Almost surely, 212430441 is an apocalyptic number.

It is an amenable number.

12430441 is a deficient number, since it is larger than the sum of its proper divisors (7131).

12430441 is an equidigital number, since it uses as much as digits as its factorization.

12430441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7130.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 12430441 is about 3525.6830543882. The cubic root of 12430441 is about 231.6481549885.

Adding to 12430441 its reverse (14403421), we get a palindrome (26833862).

The spelling of 12430441 in words is "twelve million, four hundred thirty thousand, four hundred forty-one".

Divisors: 1 3037 4093 12430441