21031189 is an odd 8-digits composite number following 21031188
and preceding 21031190 . In scientific notation, it is written as 2.1031189 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 20979360 positive integers (up to 21031189) that are relatively prime to 21031189.
21031189 has 4 divisors, whose sum is 21083020
The reverse of 21031189 is 98113012
Previous prime number is 409
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-one million thirty-one thousand one hundred eighty-nine
Scientific notation
2.1031189 × 10^7
Engineering notation
2.1031189 × 10^6
Prime Factorization
409 × 51421
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21031189
Product of the distinct prime numbers
The prime factorization of 21031189 is 409 × 51421.
Since it has a total of 2 prime factors.
5 , 2 , 26 , 88 , 828 , 649 , 8117 , 856 , 37464 , 20519 , 717892 , 918784 , 7945391 , 304622 , 32797 , 36931956 , 255112319 , 574902403 , 6280527048 , 1128570649
n×2
42062378
n×3
63093567
n×4
84124756
n×5
105155945
n÷2
10515594.5
n÷3
7010396.3333333
n÷3
5257797.25
n÷5
4206237.8
n2
442310910753721
n3
9.3023243608236E+21
n4
1.9563894177179E+29
n5
4.1145195601624E+36
2 √n
4585.9774312572
3 √n
276.02893433968
4 √n
67.719845180399
5 √n
29.145584228291
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
-21031188
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 21031189 can be divided by 4 positive divisors.
The sum of these divisors (counting 21031189) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000001110100100010101
3
Ternary
1110120111100221
4
Quaternary
1100032210111
5
Quinary
20340444224
6
Senary
2030434341
8
Octal
120164425
10
Decimal
21031189
12
Duodecimal
70629b1
16
Hexadecimal
140e915
20
Vigesimal
6b8hj9
36
Base36
cirrp
md5
6e5f8a7e243678feb7cdc5d05c149be8
sha1
2ef9e66c221c2ffa4a47c732ec7a761e99933ddc
sha256
2bd8b90bc5aebe9a47ff3aafc505c2df045dc15642687fb67f1835e27cfdcb21
sha512
35ab4cefea78475c5644122bb43bd8b634be9bcb89d712b2536d4fda1d9dc83e56c51662aadb35eded060cac9d483fcaa417bd5137161fd85a1f091159d7368c
ripemd-160
6dffdf0720971aca58a1097b70da7a213d3cb26d
Diameter
42062378
Circumference
132142857.71732
Area
1.3895607078265E+15
Volume
3.8965485164364E+22
Surface area
5.558242831306E+15
Circumference
132142857.71732
Perimeter
84124756
Area
442310910753721
Diagonal
29742592.716632
Surface area
2653865464522326
Volume
9.3023243608236E+21
Space diagonal
36427087.891584
Perimeter
63093567
Area
1.9152624254188E+14
Altitude
18213543.945792
Surface area
1.9152624254188E+14
Volume
1.0962894393892E+21
Height
9914197.5722106