Base | Representation |
---|---|
bin | 101111110101… |
… | …110011011000 |
3 | 212121011012211 |
4 | 233311303120 |
5 | 11202304034 |
6 | 1124444504 |
7 | 211412050 |
oct | 57656330 |
9 | 25534184 |
10 | 12541144 |
11 | 7096390 |
12 | 4249734 |
13 | 27a13c5 |
14 | 1946560 |
15 | 117ad64 |
hex | bf5cd8 |
12541144 has 32 divisors (see below), whose sum is σ = 29318400. Its totient is φ = 4885920.
The previous prime is 12541129. The next prime is 12541147. The reversal of 12541144 is 44114521.
It is a Harshad number since it is a multiple of its sum of digits (22).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12541147) 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, 9564 + ... + 10795.
It is an arithmetic number, because the mean of its divisors is an integer number (916200).
Almost surely, 212541144 is an apocalyptic number.
12541144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.
It is an amenable number.
12541144 is an abundant number, since it is smaller than the sum of its proper divisors (16777256).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12541144 is a wasteful number, since it uses less digits than its factorization.
12541144 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 20383 (or 20379 counting only the distinct ones).
The product of its digits is 640, while the sum is 22.
The square root of 12541144 is about 3541.3477660348. The cubic root of 12541144 is about 232.3337941903. Note that the first 3 decimals are identical.
Adding to 12541144 its reverse (44114521), we get a palindrome (56655665).
The spelling of 12541144 in words is "twelve million, five hundred forty-one thousand, one hundred forty-four".
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