21094781 is an odd 8-digits composite number following 21094780
and preceding 21094782 . In scientific notation, it is written as 2.1094781 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 21084864 positive integers (up to 21094781) that are relatively prime to 21094781.
21094781 has 4 divisors, whose sum is 21104700
The reverse of 21094781 is 18749012
Previous prime number is 3089
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million ninety-four thousand seven hundred eighty-one
Scientific notation
2.1094781 × 10^7
Engineering notation
2.1094781 × 10^6
Prime Factorization
3089 × 6829
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21094781
Product of the distinct prime numbers
The prime factorization of 21094781 is 3089 × 6829.
Since it has a total of 2 prime factors.
2 , 1 , 97 , 12 , 236 , 640 , 3611 , 9443 , 124 , 82628 , 195225 , 462020 , 1683609 , 5016178 , 39739763 , 28788749 , 476009876 , 453248828 , 3557167090 , 2928804856
n×2
42189562
n×3
63284343
n×4
84379124
n×5
105473905
n÷2
10547390.5
n÷3
7031593.6666667
n÷3
5273695.25
n÷5
4218956.2
n2
444989785437961
n3
9.3869620710508E+21
n4
1.9801590914412E+29
n5
4.1771022379112E+36
2 √n
4592.9055074103
3 √n
276.30686393829
4 √n
67.770978356597
5 √n
29.163188448091
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21094780
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21094781 can be divided by 4 positive divisors.
The sum of these divisors (counting 21094781) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000011110000101111101
3
Ternary
1110200201121012
4
Quaternary
1100132011331
5
Quinary
20400013111
6
Senary
2032045005
8
Octal
120360575
10
Decimal
21094781
12
Duodecimal
7093765
16
Hexadecimal
141e17d
20
Vigesimal
6bggj1
36
Base36
ck4u5
md5
e6807b25a46995994cfe3f847907f4a7
sha1
87b6075912f005b473bb1405d8b4d2773e258d92
sha256
5310a9412bd3b0fd38578dca227ac9ec8288808ae0a837fcd908e40db0260975
sha512
3b16530f47c91964eea815238bc5d4ec82c0301cfac1f58def9e215629576f486e9b8546e7288a988ba48e22ac614c267960e5c602ba73f735e81895ff981e4b
ripemd-160
252b6aba3df3747f85e0cacb0025f5d01c13da9c
Diameter
42189562
Circumference
132542418.03737
Area
1.3979766408544E+15
Volume
3.9320014775919E+22
Surface area
5.5919065634176E+15
Circumference
132542418.03737
Perimeter
84379124
Area
444989785437961
Diagonal
29832525.38549
Surface area
2669938712627766
Volume
9.3869620710508E+21
Space diagonal
36537232.466539
Perimeter
63284343
Area
1.9268622930693E+14
Altitude
18268616.233269
Surface area
1.9268622930693E+14
Volume
1.1062640891968E+21
Height
9944175.1284968