21890969 is an odd 8-digits composite number following 21890968
and preceding 21890970 . In scientific notation, it is written as 2.1890969 × 10^7.
The sum of its digits is 44. It has a total of 2 prime factors and 4 positive divisors.
There are 21136080 positive integers (up to 21890969) that are relatively prime to 21890969.
21890969 has 4 divisors, whose sum is 22645860
The reverse of 21890969 is 96909812
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
twenty-one million eight hundred ninety thousand nine hundred sixty-nine
Scientific notation
2.1890969 × 10^7
Engineering notation
2.1890969 × 10^6
Prime Factorization
29 × 754861
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21890969
Product of the distinct prime numbers
The prime factorization of 21890969 is 29 × 754861.
Since it has a total of 2 prime factors.
8 , 5 , 16 , 95 , 809 , 202 , 4992 , 505 , 90446 , 37177 , 401423 , 154175 , 862472 , 9156900 , 97725853 , 89547013 , 502667617 , 208624405 , 7654305316 , 4795238348
n×2
43781938
n×3
65672907
n×4
87563876
n×5
109454845
n÷2
10945484.5
n÷3
7296989.6666667
n÷3
5472742.25
n÷5
4378193.8
n2
479214523758961
n3
1.0490470283957E+22
n4
2.2964655978153E+29
n5
5.0271857211341E+36
2 √n
4678.7785799287
3 √n
279.74027360957
4 √n
68.401597787835
5 √n
29.380081568272
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
-21890968
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 21890969 can be divided by 4 positive divisors.
The sum of these divisors (counting 21890969) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010011100000011110011001
3
Ternary
1112012011202122
4
Quaternary
1103200132121
5
Quinary
21101002334
6
Senary
2101111025
8
Octal
123403631
10
Decimal
21890969
12
Duodecimal
73b8475
16
Hexadecimal
14e0799
20
Vigesimal
6gg789
36
Base36
d176h
md5
267e4d6c70755ecd90fef7ead6814779
sha1
fb90e5be8a6fa3ce54605f1dd691665345985baf
sha256
36573ec88c83a5a5557c421e2c354a2e46362dbb2d8b2a393b540278449a8c2d
sha512
46283e1618491448e2e9a5587a40a1a06d7e34cec7de6d331fc5d6f302a813e0ca1f1e0a937e2b3aba4b39ea7d527e5032230911ff8365ad874f7d3c5f0b6de9
ripemd-160
d51ccbf4922225af7891382db85f5aca9fe90022
Diameter
43781938
Circumference
137545014.78072
Area
1.5054968273347E+15
Volume
4.3942379169043E+22
Surface area
6.0219873093387E+15
Circumference
137545014.78072
Perimeter
87563876
Area
479214523758961
Diagonal
30958505.253289
Surface area
2875287142553766
Volume
1.0490470283957E+22
Space diagonal
37916270.534915
Perimeter
65672907
Area
2.0750597571886E+14
Altitude
18958135.267458
Surface area
2.0750597571886E+14
Volume
1.2363137792703E+21
Height
10319501.751096