Base | Representation |
---|---|
bin | 101110010101… |
… | …001001101100 |
3 | 211212001011110 |
4 | 232111021230 |
5 | 11102122020 |
6 | 1112152020 |
7 | 205142631 |
oct | 56251154 |
9 | 24761143 |
10 | 12145260 |
11 | 6945a06 |
12 | 4098610 |
13 | 269315a |
14 | 1882188 |
15 | 10ed8e0 |
hex | b9526c |
12145260 has 48 divisors (see below), whose sum is σ = 34497792. Its totient is φ = 3192000.
The previous prime is 12145241. The next prime is 12145261. The reversal of 12145260 is 6254121.
12145260 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not an unprimeable number, because it can be changed into a prime (12145261) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2835 + ... + 5685.
It is an arithmetic number, because the mean of its divisors is an integer number (718704).
Almost surely, 212145260 is an apocalyptic number.
12145260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 12145260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17248896).
12145260 is an abundant number, since it is smaller than the sum of its proper divisors (22352532).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12145260 is a wasteful number, since it uses less digits than its factorization.
12145260 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2934 (or 2932 counting only the distinct ones).
The product of its (nonzero) digits is 480, while the sum is 21.
The square root of 12145260 is about 3485.0050215172. The cubic root of 12145260 is about 229.8629303011.
Adding to 12145260 its reverse (6254121), we get a palindrome (18399381).
The spelling of 12145260 in words is "twelve million, one hundred forty-five thousand, two hundred sixty".
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