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12243441 = 37583021
BaseRepresentation
bin101110101101…
…000111110001
3212001000211210
4232231013301
511113242231
61114230333
7206032110
oct56550761
925030753
1012243441
116a02751
1241253a9
1326c8a52
1418a9c77
15111ca46
hexbad1f1

12243441 has 8 divisors (see below), whose sum is σ = 18656704. Its totient is φ = 6996240.

The previous prime is 12243431. The next prime is 12243443. The reversal of 12243441 is 14434221.

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

It is not a de Polignac number, because 12243441 - 26 = 12243377 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 583021 = 12243441 / (1 + 2 + 2 + 4 + 3 + 4 + 4 + 1).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12243443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 291490 + ... + 291531.

It is an arithmetic number, because the mean of its divisors is an integer number (2332088).

Almost surely, 212243441 is an apocalyptic number.

It is an amenable number.

12243441 is a deficient number, since it is larger than the sum of its proper divisors (6413263).

12243441 is an equidigital number, since it uses as much as digits as its factorization.

12243441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583031.

The product of its digits is 768, while the sum is 21.

The square root of 12243441 is about 3499.0628745423. The cubic root of 12243441 is about 230.4806646025.

Adding to 12243441 its reverse (14434221), we get a palindrome (26677662).

It can be divided in two parts, 12 and 243441, that multiplied together give a palindrome (2921292).

The spelling of 12243441 in words is "twelve million, two hundred forty-three thousand, four hundred forty-one".

Divisors: 1 3 7 21 583021 1749063 4081147 12243441