| Base | Representation |
|---|---|
| bin | 101000001010010110… |
| … | …000111100011101000 |
| 3 | 11010022022222201210001 |
| 4 | 220022112013203220 |
| 5 | 1201304022240430 |
| 6 | 31451024432344 |
| 7 | 3054430343140 |
| oct | 501226074350 |
| 9 | 133268881701 |
| 10 | 43123243240 |
| 11 | 17319a45a00 |
| 12 | 8435a786b4 |
| 13 | 40b3157c9c |
| 14 | 21312d5920 |
| 15 | 11c5cc23ca |
| hex | a0a5878e8 |
43123243240 has 192 divisors, whose sum is σ = 122775811200. Its totient is φ = 13342855680.
The previous prime is 43123243231. The next prime is 43123243249. The reversal of 43123243240 is 4234232134.
It is an interprime number because it is at equal distance from previous prime (43123243231) and next prime (43123243249).
It is a super-2 number, since 2×431232432402 (a number of 22 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (28).
It is a junction number, because it is equal to n+sod(n) for n = 43123243199 and 43123243208.
It is not an unprimeable number, because it can be changed into a prime (43123243249) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4704742 + ... + 4713898.
It is an arithmetic number, because the mean of its divisors is an integer number (639457350).
Almost surely, 243123243240 is an apocalyptic number.
43123243240 is a gapful number since it is divisible by the number (40) 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 43123243240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61387905600).
43123243240 is an abundant number, since it is smaller than the sum of its proper divisors (79652567960).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
43123243240 is a wasteful number, since it uses less digits than its factorization.
43123243240 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9336 (or 9321 counting only the distinct ones).
The product of its (nonzero) digits is 13824, while the sum is 28.
Adding to 43123243240 its reverse (4234232134), we get a palindrome (47357475374).
The spelling of 43123243240 in words is "forty-three billion, one hundred twenty-three million, two hundred forty-three thousand, two hundred forty".
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