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12412417 = 44328019
BaseRepresentation
bin101111010110…
…011000000001
3212100121122011
4233112120001
511134144132
61122012521
7210334543
oct57263001
925317564
1012412417
1170086a6
1241a7141
132757934
141911693
151152b47
hexbd6601

12412417 has 4 divisors (see below), whose sum is σ = 12440880. Its totient is φ = 12383956.

The previous prime is 12412399. The next prime is 12412447. The reversal of 12412417 is 71421421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 71421421 = 337211933.

It is a cyclic number.

It is not a de Polignac number, because 12412417 - 211 = 12410369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12412447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13567 + ... + 14452.

It is an arithmetic number, because the mean of its divisors is an integer number (3110220).

Almost surely, 212412417 is an apocalyptic number.

It is an amenable number.

12412417 is a deficient number, since it is larger than the sum of its proper divisors (28463).

12412417 is an equidigital number, since it uses as much as digits as its factorization.

12412417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28462.

The product of its digits is 448, while the sum is 22.

The square root of 12412417 is about 3523.1260266984. The cubic root of 12412417 is about 231.5361384214.

Adding to 12412417 its reverse (71421421), we get a palindrome (83833838).

The spelling of 12412417 in words is "twelve million, four hundred twelve thousand, four hundred seventeen".

Divisors: 1 443 28019 12412417