21000837 is an odd 8-digits composite number following 21000836
and preceding 21000838 . In scientific notation, it is written as 2.1000837 × 10^7.
The sum of its digits is 21. It has a total of 4 prime factors and 16 positive divisors.
There are 11748480 positive integers (up to 21000837) that are relatively prime to 21000837.
21000837 has 16 divisors, whose sum is 32897088
The reverse of 21000837 is 73800012
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty-one million eight hundred thirty-seven
Scientific notation
2.1000837 × 10^7
Engineering notation
2.1000837 × 10^6
Prime Factorization
3 × 11 × 13 × 48953
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21000837
Product of the distinct prime numbers
The prime factorization of 21000837 is 3 × 11 × 13 × 48953.
Since it has a total of 4 prime factors.
2 , 7 , 46 , 62 , 970 , 99 , 4215 , 8322 , 50267 , 95987 , 195251 , 133761 , 2225651 , 2314603 , 85204318 , 50980315 , 905764577 , 828272793 , 6970326996 , 8129561672
n×2
42001674
n×3
63002511
n×4
84003348
n×5
105004185
n÷2
10500418.5
n÷3
7000279
n÷3
5250209.25
n÷5
4200167.4
n2
441035154700569
n3
9.2621073951364E+21
n4
1.9451200768175E+29
n5
4.0849149678673E+36
2 √n
4582.6670182329
3 √n
275.89608301725
4 √n
67.695398796616
5 √n
29.137166845052
1 , 3 , 11 , 13 , 33 , 39 , 143 , 429 , 48953 , 146859 , 538483 , 636389 , 1615449 , 1909167 , 7000279 , 21000837
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
-21000836
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 21000837 can be divided by 16 positive divisors.
The sum of these divisors (counting 21000837) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000000111001010000101
3
Ternary
1110111221201210
4
Quaternary
1100013022011
5
Quinary
20334011322
6
Senary
2030042033
8
Octal
120071205
10
Decimal
21000837
12
Duodecimal
7049319
16
Hexadecimal
1407285
20
Vigesimal
6b521h
36
Base36
ci4cl
md5
ea616920ca5de52c1f3ca3f821cd88a1
sha1
a869b3d66ea4ecb623bc79214c7dbcba45766ae8
sha256
7f314e3aa891886c7b2d01833241e9d9b326566923ce3e142490b9d2fae87bdb
sha512
bf6cae1ca99dda78393fb284968a9985b4494e73cdb29c77dd1dfb475fe17363378195b30ca4f91e99c8ed2b481f023a844c4fbe6704f05e35a272167801f20a
ripemd-160
3e03fd1136d10590d6fa2c38982d44cad78d1a49
Diameter
42001674
Circumference
131952150.47687
Area
1.3855528019821E+15
Volume
3.8797024732427E+22
Surface area
5.5422112079286E+15
Circumference
131952150.47687
Perimeter
84003348
Area
441035154700569
Diagonal
29699668.506587
Surface area
2646210928203414
Volume
9.2621073951364E+21
Space diagonal
36374516.685472
Perimeter
63002511
Area
1.9097382396635E+14
Altitude
18187258.342736
Surface area
1.9097382396635E+14
Volume
1.0915498245298E+21
Height
9899889.5021956