21681131 is an odd 8-digits composite number following 21681130
and preceding 21681132 . In scientific notation, it is written as 2.1681131 × 10^7.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 21600264 positive integers (up to 21681131) that are relatively prime to 21681131.
21681131 has 4 divisors, whose sum is 21762000
The reverse of 21681131 is 13118612
Previous prime number is 269
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty-one million six hundred eighty-one thousand one hundred thirty-one
Scientific notation
2.1681131 × 10^7
Engineering notation
2.1681131 × 10^6
Prime Factorization
269 × 80599
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21681131
Product of the distinct prime numbers
The prime factorization of 21681131 is 269 × 80599.
Since it has a total of 2 prime factors.
9 , 10 , 22 , 50 , 456 , 325 , 5846 , 5985 , 94921 , 16672 , 498060 , 542765 , 1924101 , 7028286 , 9431444 , 25608186 , 845479800 , 81232790 , 8719774584 , 325314911
n×2
43362262
n×3
65043393
n×4
86724524
n×5
108405655
n÷2
10840565.5
n÷3
7227043.6666667
n÷3
5420282.75
n÷5
4336226.2
n2
470071441439161
n3
1.0191680501201E+22
n4
2.2096716005669E+29
n5
4.7908179438871E+36
2 √n
4656.3001406696
3 √n
278.8435765379
4 √n
68.237087721192
5 √n
29.323539231297
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
-21681130
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 21681131 can be divided by 4 positive divisors.
The sum of these divisors (counting 21681131) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010101101001111101011
3
Ternary
1111210111220212
4
Quaternary
1102231033223
5
Quinary
21022244011
6
Senary
2052411335
8
Octal
122551753
10
Decimal
21681131
12
Duodecimal
7316b4b
16
Hexadecimal
14ad3eb
20
Vigesimal
6fa2gb
36
Base36
cwp9n
md5
5afd2a2ad9b99d9d68c524b1e085e1c3
sha1
bfb1e65315911668c5be04f767a989eda6ecf1f2
sha256
147a31fc6c05d343957c24b0c7e7fee4534a62edca10d5977e45cbbbaf969a1e
sha512
9186969708f0c11c17d76f6b3ff28bcbc814408b02d467ad55068f2be446dd8a74fac3dbdbf011490dc6daf621a181062d4824337a22ebc9b1ee6181e4c58ac2
ripemd-160
5d385165094a582fe469b5ea1e00e1696347b658
Diameter
43362262
Circumference
136226563.74224
Area
1.4767729870876E+15
Volume
4.2690811453744E+22
Surface area
5.9070919483505E+15
Circumference
136226563.74224
Perimeter
86724524
Area
470071441439161
Diagonal
30661749.507788
Surface area
2820428648634966
Volume
1.0191680501201E+22
Space diagonal
37552820.457557
Perimeter
65043393
Area
2.0354690493994E+14
Altitude
18776410.228778
Surface area
2.0354690493994E+14
Volume
1.201101065681E+21
Height
10220583.169263