21000897 is an odd 8-digits composite number following 21000896
and preceding 21000898 . In scientific notation, it is written as 2.1000897 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors.
There are 13392000 positive integers (up to 21000897) that are relatively prime to 21000897.
21000897 has 16 divisors, whose sum is 22748544
The reverse of 21000897 is 79800012
Previous prime number is 41
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty-one million eight hundred ninety-seven
Scientific notation
2.1000897 × 10^7
Engineering notation
2.1000897 × 10^6
Prime Factorization
27 × 61 × 41 × 311
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21000897
Product of the distinct prime numbers
The prime factorization of 21000897 is 27 × 61 × 41 × 311.
Since it has a total of 4 prime factors.
5 , 8 , 77 , 67 , 34 , 457 , 3011 , 3850 , 39249 , 23323 , 219925 , 566398 , 5793312 , 238388 , 36443200 , 1883663 , 201704189 , 113892346 , 8394951468 , 4648332053
n×2
42001794
n×3
63002691
n×4
84003588
n×5
105004485
n÷2
10500448.5
n÷3
7000299
n÷3
5250224.25
n÷5
4200179.4
n2
441037674804609
n3
9.2621867816911E+21
n4
1.9451423059706E+29
n5
4.084973321803E+36
2 √n
4582.6735646345
3 √n
275.8963457647
4 √n
67.695447148494
5 √n
29.137183494179
1 , 27 , 41 , 61 , 311 , 1107 , 1647 , 2501 , 8397 , 12751 , 18971 , 67527 , 344277 , 512217 , 777811 , 21000897
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21000896
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21000897 can be divided by 16 positive divisors.
The sum of these divisors (counting 21000897) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000000111001011000001
3
Ternary
1110111221211000
4
Quaternary
1100013023001
5
Quinary
20334012042
6
Senary
2030042213
8
Octal
120071301
10
Decimal
21000897
12
Duodecimal
7049369
16
Hexadecimal
14072c1
20
Vigesimal
6b524h
36
Base36
ci4e9
md5
d07ec100607a9db9832384be38d8ac71
sha1
8e4c428f2d18596a21f8bdb60294deb377889107
sha256
5a13e20b81337728deb2ee71a3c4b658147698de0946b6b3b38f0ff27c6929b3
sha512
c01de9a296f6d5f7da9ac70a73599b847d47505e23edf7707583ea16feea4eaaaed2889dfccfef1f007c4024fd6b20b12c80b801f65aba0ee8a6f3e6d97e789a
ripemd-160
320654b564477724511ba2b944ebe4e4139c3985
Diameter
42001794
Circumference
131952527.46799
Area
1.3855607191225E+15
Volume
3.879735726605E+22
Surface area
5.5422428764899E+15
Circumference
131952527.46799
Perimeter
84003588
Area
441037674804609
Diagonal
29699753.3594
Surface area
2646226048827654
Volume
9.2621867816911E+21
Space diagonal
36374620.608521
Perimeter
63002691
Area
1.9097491520341E+14
Altitude
18187310.30426
Surface area
1.9097491520341E+14
Volume
1.091559180325E+21
Height
9899917.7864668