21693969 is an odd 8-digits composite number following 21693968
and preceding 21693970 . In scientific notation, it is written as 2.1693969 × 10^7.
The sum of its digits is 45. It has a total of 4 prime factors and 12 positive divisors.
There are 13140600 positive integers (up to 21693969) that are relatively prime to 21693969.
21693969 has 12 divisors, whose sum is 24099600
The reverse of 21693969 is 96939612
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
twenty-one million six hundred ninety-three thousand nine hundred sixty-nine
Scientific notation
2.1693969 × 10^7
Engineering notation
2.1693969 × 10^6
Prime Factorization
99 × 11 × 11 × 1811
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1972179
Product of the distinct prime numbers
The prime factorization of 21693969 is 99 × 11 × 11 × 1811.
Since it has a total of 4 prime factors.
4 , 9 , 64 , 66 , 141 , 419 , 1552 , 7649 , 52554 , 33681 , 933313 , 715465 , 74330 , 5634540 , 61841072 , 77796287 , 192054577 , 306001882 , 8241038508 , 8186135620
n×2
43387938
n×3
65081907
n×4
86775876
n×5
108469845
n÷2
10846984.5
n÷3
7231323
n÷3
5423492.25
n÷5
4338793.8
n2
470628290972961
n3
1.020979555489E+22
n4
2.2149098826413E+29
n5
4.8050186331814E+36
2 √n
4657.678498995
3 √n
278.89860268795
4 √n
68.247186747843
5 √n
29.327011065533
1 , 11 , 99 , 121 , 1089 , 1811 , 11979 , 19921 , 179289 , 219131 , 1972179 , 21693969
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21693968
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21693969 can be divided by 12 positive divisors.
The sum of these divisors (counting 21693969) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010010110000011000010001
3
Ternary
1111211011112100
4
Quaternary
1102300120101
5
Quinary
21023201334
6
Senary
2052551013
8
Octal
122603021
10
Decimal
21693969
12
Duodecimal
7322469
16
Hexadecimal
14b0611
20
Vigesimal
6fbei9
36
Base36
cwz69
md5
081a42fec7b2a0b06c6b7c3bc751fcec
sha1
79358beb9704802b5f3a35da55df7c9b202b2d7e
sha256
a259b529346e16a76e25538c6a53d68f8ad0aea281e7e5f597047af54a5042ad
sha512
d31601388b59325fede78215df31742cb7087d1f7ab1aa12df182bb43f41a58298930356b46efcd65dd4fec023bc05e370d0e167f8d9e2c8a3f945321302ffc8
ripemd-160
3bddebb3cc14fff77c3be5ef46913590a17b1a59
Diameter
43387938
Circumference
136307227.27521
Area
1.4785223814922E+15
Volume
4.2766691613197E+22
Surface area
5.9140895259687E+15
Circumference
136307227.27521
Perimeter
86775876
Area
470628290972961
Diagonal
30679905.181501
Surface area
2823769745837766
Volume
1.020979555489E+22
Space diagonal
37575056.525824
Perimeter
65081907
Area
2.0378802786112E+14
Altitude
18787528.262912
Surface area
2.0378802786112E+14
Volume
1.2032359452319E+21
Height
10226635.0605