Base | Representation |
---|---|
bin | 100111101010… |
… | …1000000100000 |
3 | 1110010111221220 |
4 | 1033111000200 |
5 | 20310423144 |
6 | 2021415040 |
7 | 341521026 |
oct | 117250040 |
9 | 43114856 |
10 | 20795424 |
11 | 10813a01 |
12 | 6b6a480 |
13 | 44014b0 |
14 | 2a94716 |
15 | 1c5b919 |
hex | 13d5020 |
20795424 has 96 divisors (see below), whose sum is σ = 61951680. Its totient is φ = 6054912.
The previous prime is 20795399. The next prime is 20795429. The reversal of 20795424 is 42459702.
It is a tau number, because it is divible by the number of its divisors (96).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20795429) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23274 + ... + 24150.
It is an arithmetic number, because the mean of its divisors is an integer number (645330).
Almost surely, 220795424 is an apocalyptic number.
20795424 is a gapful number since it is divisible by the number (24) 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 20795424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30975840).
20795424 is an abundant number, since it is smaller than the sum of its proper divisors (41156256).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20795424 is a wasteful number, since it uses less digits than its factorization.
20795424 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 922 (or 914 counting only the distinct ones).
The product of its (nonzero) digits is 20160, while the sum is 33.
The square root of 20795424 is about 4560.1999956142. The cubic root of 20795424 is about 274.9936042590.
It can be divided in two parts, 2079 and 5424, that added together give a triangular number (7503 = T122).
The spelling of 20795424 in words is "twenty million, seven hundred ninety-five thousand, four hundred twenty-four".
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