21008869 is an odd 8-digits composite number following 21008868
and preceding 21008870 . In scientific notation, it is written as 2.1008869 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 18007596 positive integers (up to 21008869) that are relatively prime to 21008869.
21008869 has 4 divisors, whose sum is 24010144
The reverse of 21008869 is 96880012
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-one million eight thousand eight hundred sixty-nine
Scientific notation
2.1008869 × 10^7
Engineering notation
2.1008869 × 10^6
Prime Factorization
7 × 3001267
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21008869
Product of the distinct prime numbers
The prime factorization of 21008869 is 7 × 3001267.
Since it has a total of 2 prime factors.
2 , 4 , 50 , 19 , 670 , 905 , 5853 , 7724 , 6370 , 93465 , 748785 , 709623 , 5539078 , 8145970 , 89485983 , 13666712 , 926741464 , 380194440 , 379631901 , 4015329547
n×2
42017738
n×3
63026607
n×4
84035476
n×5
105044345
n÷2
10504434.5
n÷3
7002956.3333333
n÷3
5252217.25
n÷5
4201773.8
n2
441372576659161
n3
9.2727386432248E+21
n4
1.9480975142675E+29
n5
4.0927325476471E+36
2 √n
4583.54328004
3 √n
275.93125169311
4 √n
67.701870580066
5 √n
29.139395269847
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
-21008868
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 21008869 can be divided by 4 positive divisors.
The sum of these divisors (counting 21008869) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000001001000111100101
3
Ternary
1110112100202021
4
Quaternary
1100021013211
5
Quinary
20334240434
6
Senary
2030143141
8
Octal
120110745
10
Decimal
21008869
12
Duodecimal
7051ab1
16
Hexadecimal
14091e5
20
Vigesimal
6b6239
36
Base36
ciajp
md5
052e0eb4732969535daef113d372c27f
sha1
9581fe0f6606dd87172c78e8010f451977967098
sha256
48f645484117e1e8ac64b70cd4e7cf8725380aeb5e7358b39e0898eef7d6f69e
sha512
74670b7b08a97d5186c1a23c7ce35b1faff6b8cdb14c6c991f9749506d466fff1536ea17cf82972f0f8618a204b8ea48453ec0b0ce1bb9f025db30858328c40e
ripemd-160
5309c681ceefc34adf47e33dbc1e66df809251ca
Diameter
42017738
Circumference
132002617.02126
Area
1.3866128443284E+15
Volume
3.8841556800284E+22
Surface area
5.5464513773137E+15
Circumference
132002617.02126
Perimeter
84035476
Area
441372576659161
Diagonal
29711027.46992
Surface area
2648235459954966
Volume
9.2727386432248E+21
Space diagonal
36388428.517559
Perimeter
63026607
Area
1.9111993196031E+14
Altitude
18194214.258779
Surface area
1.9111993196031E+14
Volume
1.0928027291325E+21
Height
9903675.8233066