21681172 is an even 8-digits composite number following 21681171
and preceding 21681173 . In scientific notation, it is written as 2.1681172 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 6 positive divisors.
There are 10840584 positive integers (up to 21681172) that are relatively prime to 21681172.
21681172 has 6 divisors, whose sum is 37942058
The reverse of 21681172 is 27118612
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million six hundred eighty-one thousand one hundred seventy-two
Scientific notation
2.1681172 × 10^7
Engineering notation
2.1681172 × 10^6
Prime Factorization
2 × 2 × 5420293
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
10840586
Product of the distinct prime numbers
The prime factorization of 21681172 is 2 × 2 × 5420293.
Since it has a total of 3 prime factors.
3 , 4 , 44 , 77 , 451 , 69 , 1374 , 7862 , 14166 , 20778 , 78118 , 142017 , 1731585 , 48484 , 26758575 , 75597696 , 657529560 , 825083647 , 426106231 , 5761669479
n×2
43362344
n×3
65043516
n×4
86724688
n×5
108405860
n÷2
10840586
n÷3
7227057.3333333
n÷3
5420293
n÷5
4336234.4
n2
470073219293584
n3
1.0191738320098E+22
n4
2.2096883149703E+29
n5
4.7908632423262E+36
2 √n
4656.3045433047
3 √n
278.8437523064
4 √n
68.237119981024
5 √n
29.323550321717
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21681171
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21681172 can be divided by 6 positive divisors.
The sum of these divisors (counting 21681172) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1010010101101010000010100
3
Ternary
1111210111222101
4
Quaternary
1102231100110
5
Quinary
21022244142
6
Senary
2052411444
8
Octal
122552024
10
Decimal
21681172
12
Duodecimal
7316b84
16
Hexadecimal
14ad414
20
Vigesimal
6fa2ic
36
Base36
cwpas
md5
267a8dd938ac37818286a7fbb035c8a8
sha1
8313cf916995aa4c3fd32d9e2179204866f9d055
sha256
9720be1ef4719f4d10f78699db65c6a66a9379bc059370cfb34d7d24afb3b69e
sha512
bca206344b2f494718819432d3ae14a147cb4b76e60108e281819ddeedf427e195d47ee9862758e4096d9e250c2b24d6fc3b60ef964d668d96d8255473fbc304
ripemd-160
642b64cda4415d81ff7f35fc59fdfb336ce5651a
Diameter
43362344
Circumference
136226821.35283
Area
1.476778572382E+15
Volume
4.2691053644972E+22
Surface area
5.9071142895281E+15
Circumference
136226821.35283
Perimeter
86724688
Area
470073219293584
Diagonal
30661807.490544
Surface area
2820439315761504
Volume
1.0191738320098E+22
Space diagonal
37552891.47164
Perimeter
65043516
Area
2.0354767477349E+14
Altitude
18776445.73582
Surface area
2.0354767477349E+14
Volume
1.2011078797033E+21
Height
10220602.496848