21752681 is an odd 8-digits composite number following 21752680
and preceding 21752682 . In scientific notation, it is written as 2.1752681 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 21121360 positive integers (up to 21752681) that are relatively prime to 21752681.
21752681 has 8 divisors, whose sum is 22391424
The reverse of 21752681 is 18625712
Previous prime number is 131
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million seven hundred fifty-two thousand six hundred eighty-one
Scientific notation
2.1752681 × 10^7
Engineering notation
2.1752681 × 10^6
Prime Factorization
47 × 131 × 3533
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21752681
Product of the distinct prime numbers
The prime factorization of 21752681 is 47 × 131 × 3533.
Since it has a total of 3 prime factors.
5 , 9 , 25 , 97 , 514 , 289 , 1462 , 4391 , 54565 , 15834 , 170162 , 142478 , 9294713 , 1430196 , 36553640 , 20332528 , 43991409 , 387658859 , 4980460391 , 1249812392
n×2
43505362
n×3
65258043
n×4
87010724
n×5
108763405
n÷2
10876340.5
n÷3
7250893.6666667
n÷3
5438170.25
n÷5
4350536.2
n2
473179130687761
n3
1.0292914685708E+22
n4
2.2389848971843E+29
n5
4.8703924232267E+36
2 √n
4663.976951058
3 √n
279.14997738897
4 √n
68.293315566444
5 √n
29.342867882783
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21752680
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21752681 can be divided by 8 positive divisors.
The sum of these divisors (counting 21752681) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010111110101101101001
3
Ternary
1111221011001212
4
Quaternary
1102332231221
5
Quinary
21032041211
6
Senary
2054122505
8
Octal
122765551
10
Decimal
21752681
12
Duodecimal
7350435
16
Hexadecimal
14beb69
20
Vigesimal
6fj1e1
36
Base36
cy8h5
md5
94df62167e5754e7215667ad389b14a1
sha1
b2fef210d0e7df8dc6dd3f893772a2132c52ebb5
sha256
01f8da228ca3feca53931d21eacfb39a9afc33ff8db0490a3cb8b7384b308653
sha512
80834c165695cd93a806eb545f4e28d7bba9d774e7f66f61347ab74a1764ce7f35b03d2d1b25a95576e905c0deff986380cdb8640b8419f572637634300e973a
ripemd-160
80462e2e24e316ab675cd481792f08e02456f793
Diameter
43505362
Circumference
136676125.65096
Area
1.4865360808007E+15
Volume
4.3114860214196E+22
Surface area
5.9461443232027E+15
Circumference
136676125.65096
Perimeter
87010724
Area
473179130687761
Diagonal
30762936.488176
Surface area
2839074784126566
Volume
1.0292914685708E+22
Space diagonal
37676748.692838
Perimeter
65258043
Area
2.0489257385812E+14
Altitude
18838374.346419
Surface area
2.0489257385812E+14
Volume
1.2130316287398E+21
Height
10254312.162725