Base | Representation |
---|---|
bin | 100101000011010… |
… | …0101101001001000 |
3 | 10012122101012002011 |
4 | 1022012211221020 |
5 | 10021232203112 |
6 | 323210545304 |
7 | 42544242265 |
oct | 11206455110 |
9 | 3178335064 |
10 | 1243241032 |
11 | 588860430 |
12 | 2a8438234 |
13 | 16a7542a7 |
14 | bb18826c |
15 | 7422caa7 |
hex | 4a1a5a48 |
1243241032 has 64 divisors (see below), whose sum is σ = 2615639040. Its totient is φ = 549081600.
The previous prime is 1243241009. The next prime is 1243241047. The reversal of 1243241032 is 2301423421.
It is a Harshad number since it is a multiple of its sum of digits (22).
It is a junction number, because it is equal to n+sod(n) for n = 1243240994 and 1243241012.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1143193 + ... + 1144279.
It is an arithmetic number, because the mean of its divisors is an integer number (40869360).
Almost surely, 21243241032 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 1243241032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1307819520).
1243241032 is an abundant number, since it is smaller than the sum of its proper divisors (1372398008).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1243241032 is a wasteful number, since it uses less digits than its factorization.
1243241032 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1462 (or 1458 counting only the distinct ones).
The product of its (nonzero) digits is 1152, while the sum is 22.
The square root of 1243241032 is about 35259.6232538012. The cubic root of 1243241032 is about 1075.2722676507.
Adding to 1243241032 its reverse (2301423421), we get a palindrome (3544664453).
The spelling of 1243241032 in words is "one billion, two hundred forty-three million, two hundred forty-one thousand, thirty-two".
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