Base | Representation |
---|---|
bin | 101110010100… |
… | …001110000101 |
3 | 211211211221011 |
4 | 232110032011 |
5 | 11102011240 |
6 | 1112122221 |
7 | 205125541 |
oct | 56241605 |
9 | 24754834 |
10 | 12141445 |
11 | 6943058 |
12 | 4096371 |
13 | 26914b4 |
14 | 1880a21 |
15 | 10ec6ea |
hex | b94385 |
12141445 has 8 divisors (see below), whose sum is σ = 14600736. Its totient is φ = 9692496.
The previous prime is 12141443. The next prime is 12141449. The reversal of 12141445 is 54414121.
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 12141445 - 21 = 12141443 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 (12141443) 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 7 ways as a sum of consecutive naturals, for example, 294 + ... + 4936.
It is an arithmetic number, because the mean of its divisors is an integer number (1825092).
Almost surely, 212141445 is an apocalyptic number.
It is an amenable number.
12141445 is a deficient number, since it is larger than the sum of its proper divisors (2459291).
12141445 is an equidigital number, since it uses as much as digits as its factorization.
12141445 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5171.
The product of its digits is 640, while the sum is 22.
The square root of 12141445 is about 3484.4576335493. The cubic root of 12141445 is about 229.8388600352.
Adding to 12141445 its reverse (54414121), we get a palindrome (66555566).
The spelling of 12141445 in words is "twelve million, one hundred forty-one thousand, four hundred forty-five".
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