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12144433 = 77921961
BaseRepresentation
bin101110010100…
…111100110001
3211212000000211
4232110330301
511102110213
61112144121
7205140340
oct56247461
924760024
1012144433
116945324
124098041
132692972
141881b57
1510ed53d
hexb94f31

12144433 has 8 divisors (see below), whose sum is σ = 14055680. Its totient is φ = 10277280.

The previous prime is 12144413. The next prime is 12144463. The reversal of 12144433 is 33444121.

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

It is a cyclic number.

It is not a de Polignac number, because 12144433 - 217 = 12013361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12144403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10428 + ... + 11533.

It is an arithmetic number, because the mean of its divisors is an integer number (1756960).

Almost surely, 212144433 is an apocalyptic number.

It is an amenable number.

12144433 is a deficient number, since it is larger than the sum of its proper divisors (1911247).

12144433 is an equidigital number, since it uses as much as digits as its factorization.

12144433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22047.

The product of its digits is 1152, while the sum is 22.

The square root of 12144433 is about 3484.8863683053. The cubic root of 12144433 is about 229.8577128759.

Adding to 12144433 its reverse (33444121), we get a palindrome (45588554).

The spelling of 12144433 in words is "twelve million, one hundred forty-four thousand, four hundred thirty-three".

Divisors: 1 7 79 553 21961 153727 1734919 12144433