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12344749 = 29425681
BaseRepresentation
bin101111000101…
…110110101101
3212020011210221
4233011312231
511130012444
61120331341
7206633344
oct57056655
925204727
1012344749
116a7187a
124173b51
132732bb1
1418d4b5b
15113ca84
hexbc5dad

12344749 has 4 divisors (see below), whose sum is σ = 12770460. Its totient is φ = 11919040.

The previous prime is 12344723. The next prime is 12344803. The reversal of 12344749 is 94744321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94744321 = 713534903.

It can be written as a sum of positive squares in 2 ways, for example, as 7022500 + 5322249 = 2650^2 + 2307^2 .

It is a cyclic number.

It is not a de Polignac number, because 12344749 - 27 = 12344621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12344719) 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, 212812 + ... + 212869.

It is an arithmetic number, because the mean of its divisors is an integer number (3192615).

Almost surely, 212344749 is an apocalyptic number.

It is an amenable number.

12344749 is a deficient number, since it is larger than the sum of its proper divisors (425711).

12344749 is an equidigital number, since it uses as much as digits as its factorization.

12344749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425710.

The product of its digits is 24192, while the sum is 34.

The square root of 12344749 is about 3513.5094990622. The cubic root of 12344749 is about 231.1146211269.

The spelling of 12344749 in words is "twelve million, three hundred forty-four thousand, seven hundred forty-nine".

Divisors: 1 29 425681 12344749