| Base | Representation |
|---|---|
| bin | 101100000010… |
| … | …001000000000 |
| 3 | 210201110002000 |
| 4 | 230002020000 |
| 5 | 10423334130 |
| 6 | 1051224000 |
| 7 | 200054115 |
| oct | 54021000 |
| 9 | 23643060 |
| 10 | 11543040 |
| 11 | 6574503 |
| 12 | 3a48000 |
| 13 | 2512002 |
| 14 | 176690c |
| 15 | 1030260 |
| hex | b02200 |
11543040 has 160 divisors (see below), whose sum is σ = 41247360. Its totient is φ = 3059712.
The previous prime is 11543039. The next prime is 11543041. The reversal of 11543040 is 4034511.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (11543039) and next prime (11543041).
It is a tau number, because it is divible by the number of its divisors (160).
It is a Harshad number since it is a multiple of its sum of digits (18).
It is not an unprimeable number, because it can be changed into a prime (11543041) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (5) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69037 + ... + 69203.
It is an arithmetic number, because the mean of its divisors is an integer number (257796).
Almost surely, 211543040 is an apocalyptic number.
11543040 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 11543040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20623680).
11543040 is an abundant number, since it is smaller than the sum of its proper divisors (29704320).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
11543040 is an equidigital number, since it uses as much as digits as its factorization.
11543040 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 199 (or 177 counting only the distinct ones).
The product of its (nonzero) digits is 240, while the sum is 18.
The square root of 11543040 is about 3397.5049668838. The cubic root of 11543040 is about 225.9991124303. Note that the first 3 decimals are identical.
Adding to 11543040 its reverse (4034511), we get a palindrome (15577551).
The spelling of 11543040 in words is "eleven million, five hundred forty-three thousand, forty".
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