21689910 is an even 8-digits composite number following 21689909
and preceding 21689911 . In scientific notation, it is written as 2.1689910 × 10^7.
The sum of its digits is 36. It has a total of 5 prime factors and 32 positive divisors.
There are 5132160 positive integers (up to 21689910) that are relatively prime to 21689910.
21689910 has 32 divisors, whose sum is 40122720
The reverse of 21689910 is 01998612
Previous prime number is 67
Is Prime? no
Number parity even
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty-one million six hundred eighty-nine thousand nine hundred ten
Scientific notation
2.1689910 × 10^7
Engineering notation
2.1689910 × 10^6
Prime Factorization
2 × 297 × 5 × 67 × 109
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
21689910
Product of the distinct prime numbers
The prime factorization of 21689910 is 2 × 297 × 5 × 67 × 109.
Since it has a total of 5 prime factors.
4 , 7 , 12 , 9 , 112 , 35 , 5613 , 999 , 40082 , 75981 , 588752 , 203340 , 3140404 , 3427627 , 47061782 , 76069403 , 129429214 , 461713247 , 9414821733 , 3643044681
n×2
43379820
n×3
65069730
n×4
86759640
n×5
108449550
n÷2
10844955
n÷3
7229970
n÷3
5422477.5
n÷5
4337982
n2
470452195808100
n3
1.020406578638E+22
n4
2.2132526854066E+29
n5
4.8005251553728E+36
2 √n
4657.2427465186
3 √n
278.88120737655
4 √n
68.243994215745
5 √n
29.325913550847
1 , 2 , 5 , 10 , 67 , 109 , 134 , 218 , 297 , 335 , 545 , 594 , 670 , 1090 , 1485 , 2970 , 7303 , 14606 , 19899 , 32373 , 36515 , 39798 , 64746 , 73030 , 99495 , 161865 , 198990 , 323730 , 2168991 , 4337982 , 10844955 , 21689910
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21689909
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21689910 can be divided by 32 positive divisors.
The sum of these divisors (counting 21689910) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1010010101111011000110110
3
Ternary
1111210221222000
4
Quaternary
1102233120312
5
Quinary
21023034120
6
Senary
2052520130
8
Octal
122573066
10
Decimal
21689910
12
Duodecimal
7320046
16
Hexadecimal
14af636
20
Vigesimal
6fb4fa
36
Base36
cww1i
md5
83f1686c139ed6a5ea1efab44e21303f
sha1
aae46afffca4733c16b3a2b290fa2a5e50a8e77b
sha256
ea5373f51cb74151063e5ccf63907665557ca1452b6c08f90ec0c5b3a1b8b574
sha512
fa0f351c21e092a9b7db0ebb6d779df1308b2b6b44a1fadda16f396beb62ba5f02c0d3b1d52c248100cc5f6d90c0e8b00b893d6174380f2dd0c2f00e96be248e
ripemd-160
d22743c3ffea2a5e362705d7bf2076dc8bc3d2e3
Diameter
43379820
Circumference
136281723.82605
Area
1.4779691622159E+15
Volume
4.2742690814985E+22
Surface area
5.9118766488637E+15
Circumference
136281723.82605
Perimeter
86759640
Area
470452195808100
Diagonal
30674164.888652
Surface area
2822713174848600
Volume
1.020406578638E+22
Space diagonal
37568026.131596
Perimeter
65069730
Area
2.0371177641799E+14
Altitude
18784013.065798
Surface area
2.0371177641799E+14
Volume
1.2025606855372E+21
Height
10224721.629551