Base | Representation |
---|---|
bin | 100101000010111… |
… | …0010111010100000 |
3 | 10012121222122001110 |
4 | 1022011302322200 |
5 | 10021204030443 |
6 | 323202303320 |
7 | 42542415432 |
oct | 11205627240 |
9 | 3177878043 |
10 | 1243033248 |
11 | 588729306 |
12 | 2a8357b40 |
13 | 16a6b0842 |
14 | bb132652 |
15 | 741db233 |
hex | 4a172ea0 |
1243033248 has 48 divisors (see below), whose sum is σ = 3264994656. Its totient is φ = 414086400.
The previous prime is 1243033243. The next prime is 1243033249. The reversal of 1243033248 is 8423303421.
It is a tau number, because it is divible by the number of its divisors (48).
It is not an unprimeable number, because it can be changed into a prime (1243033243) 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, 209523 + ... + 215373.
It is an arithmetic number, because the mean of its divisors is an integer number (68020722).
Almost surely, 21243033248 is an apocalyptic number.
It is an amenable number.
1243033248 is an abundant number, since it is smaller than the sum of its proper divisors (2021961408).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1243033248 is a wasteful number, since it uses less digits than its factorization.
1243033248 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 8077 (or 8069 counting only the distinct ones).
The product of its (nonzero) digits is 13824, while the sum is 30.
The square root of 1243033248 is about 35256.6766442897. The cubic root of 1243033248 is about 1075.2123605704.
Adding to 1243033248 its reverse (8423303421), we get a palindrome (9666336669).
The spelling of 1243033248 in words is "one billion, two hundred forty-three million, thirty-three thousand, two hundred forty-eight".
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