21046809 is an odd 8-digits composite number following 21046808
and preceding 21046810 . In scientific notation, it is written as 2.1046809 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 11890560 positive integers (up to 21046809) that are relatively prime to 21046809.
21046809 has 8 divisors, whose sum is 24145728
The reverse of 21046809 is 90864012
Previous prime number is 267
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-one million forty-six thousand eight hundred nine
Scientific notation
2.1046809 × 10^7
Engineering notation
2.1046809 × 10^6
Prime Factorization
7 × 267 × 11261
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21046809
Product of the distinct prime numbers
The prime factorization of 21046809 is 7 × 267 × 11261.
Since it has a total of 3 prime factors.
2 , 4 , 93 , 1 , 328 , 372 , 3164 , 3458 , 48039 , 32299 , 346225 , 643502 , 1274997 , 1828469 , 95215970 , 96965799 , 341861926 , 382522355 , 920115765 , 1138445306
n×2
42093618
n×3
63140427
n×4
84187236
n×5
105234045
n÷2
10523404.5
n÷3
7015603
n÷3
5261702.25
n÷5
4209361.8
n2
442968169082481
n3
9.3230664477587E+21
n4
1.9622079882029E+29
n5
4.129821674598E+36
2 √n
4587.6801327032
3 √n
276.09725358661
4 √n
67.732415671547
5 √n
29.149912265454
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21046808
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21046809 can be divided by 8 positive divisors.
The sum of these divisors (counting 21046809) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000010010011000011001
3
Ternary
1110121021210110
4
Quaternary
1100102120121
5
Quinary
20341444214
6
Senary
2031034533
8
Octal
120223031
10
Decimal
21046809
12
Duodecimal
706ba49
16
Hexadecimal
1412619
20
Vigesimal
6bah09
36
Base36
cj3tl
md5
ec07374d43c4b21cd0d88f77a9278245
sha1
7cac41a3e2a225df8c065cd1187a9590f086b293
sha256
dfb30da1545c5e9e10da42bf65a4f8bf605e15a32c23f9455c08dea45d69770d
sha512
be2189a4e62738ecd716700d1987724a676c1b30cc315d122e46254990bead8946139b845cc8a2c427f31c4adbc0c6f8461ef4e9aad3f5c1636c7554495cc568
ripemd-160
bc547cf0891e861d11480cec1e889e4ece3490ce
Diameter
42093618
Circumference
132241001.07182
Area
1.3916255457636E+15
Volume
3.9052369414944E+22
Surface area
5.5665021830546E+15
Circumference
132241001.07182
Perimeter
84187236
Area
442968169082481
Diagonal
29764682.732476
Surface area
2657809014494886
Volume
9.3230664477587E+21
Space diagonal
36454142.525198
Perimeter
63140427
Area
1.9181084374665E+14
Altitude
18227071.262599
Surface area
1.9181084374665E+14
Volume
1.0987339177772E+21
Height
9921560.9108254