| Base | Representation |
|---|---|
| bin | 100110110010… |
| … | …0011010100000 |
| 3 | 1102021002100000 |
| 4 | 1031210122200 |
| 5 | 20201143430 |
| 6 | 2003500000 |
| 7 | 334560333 |
| oct | 115443240 |
| 9 | 42232300 |
| 10 | 20334240 |
| 11 | 10529463 |
| 12 | 6987600 |
| 13 | 429c5c4 |
| 14 | 29b461a |
| 15 | 1bb9e60 |
| hex | 13646a0 |
20334240 has 144 divisors (see below), whose sum is σ = 72098208. Its totient is φ = 5412096.
The previous prime is 20334239. The next prime is 20334241. The reversal of 20334240 is 4243302.
It is an interprime number because it is at equal distance from previous prime (20334239) and next prime (20334241).
It is a tau number, because it is divible by the number of its divisors (144).
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 (20334241) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38619 + ... + 39141.
It is an arithmetic number, because the mean of its divisors is an integer number (500682).
Almost surely, 220334240 is an apocalyptic number.
20334240 is a gapful number since it is divisible by the number (20) 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 20334240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36049104).
20334240 is an abundant number, since it is smaller than the sum of its proper divisors (51763968).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20334240 is an equidigital number, since it uses as much as digits as its factorization.
20334240 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 553 (or 533 counting only the distinct ones).
The product of its (nonzero) digits is 576, while the sum is 18.
The square root of 20334240 is about 4509.3502857951. The cubic root of 20334240 is about 272.9455271100.
Adding to 20334240 its reverse (4243302), we get a palindrome (24577542).
It can be divided in two parts, 203 and 34240, that added together give a palindrome (34443).
The spelling of 20334240 in words is "twenty million, three hundred thirty-four thousand, two hundred forty".
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