20851407 is an odd 8-digits composite number following 20851406
and preceding 20851408 . In scientific notation, it is written as 2.0851407 × 10^7.
The sum of its digits is 27. It has a total of 2 prime factors and 4 positive divisors.
There are 13900932 positive integers (up to 20851407) that are relatively prime to 20851407.
20851407 has 4 divisors, whose sum is 23168240
The reverse of 20851407 is 70415802
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million eight hundred fifty-one thousand four hundred seven
Scientific notation
2.0851407 × 10^7
Engineering notation
2.0851407 × 10^6
Prime Factorization
9 × 2316823
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20851407
Product of the distinct prime numbers
The prime factorization of 20851407 is 9 × 2316823.
Since it has a total of 2 prime factors.
7 , 3 , 80 , 76 , 448 , 947 , 9277 , 7653 , 14193 , 55712 , 223903 , 320359 , 7863264 , 279892 , 14457524 , 41070145 , 261203604 , 17772414 , 9918476579 , 4655500587
n×2
41702814
n×3
62554221
n×4
83405628
n×5
104257035
n÷2
10425703.5
n÷3
6950469
n÷3
5212851.75
n÷5
4170281.4
n2
434781173879649
n3
9.0657992125023E+21
n4
1.8903466916017E+29
n5
3.941638823769E+36
2 √n
4566.3340876462
3 √n
275.24015165213
4 √n
67.574655660582
5 √n
29.095583624806
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
-20851406
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 20851407 can be divided by 4 positive divisors.
The sum of these divisors (counting 20851407) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111100010101011001111
3
Ternary
1110020100202100
4
Quaternary
1033202223033
5
Quinary
20314221112
6
Senary
2022530143
8
Octal
117425317
10
Decimal
20851407
12
Duodecimal
6b96953
16
Hexadecimal
13e2acf
20
Vigesimal
6a68a7
36
Base36
cex1r
md5
8519df875f3fcde44d5b14ca4b0394d5
sha1
1bf4f401b5cf6071650b82ae2242cca86a5bfe0c
sha256
1ec9585382c518a6848cf8759d4e07f9ab99670995da46c20a147deb8acbaae6
sha512
1864d9dad2cd63b64742606a963128b3205495702ee3633b1c4e1cc34967f721c0db1a964a31f9f08abac2612d0a87adaef3e8a5dc874ec200ad7190892f8b9a
ripemd-160
c7705282d11887bb98b72c555c430446fb19a435
Diameter
41702814
Circumference
131013254.09642
Area
1.3659053417795E+15
Volume
3.797473093989E+22
Surface area
5.4636213671178E+15
Circumference
131013254.09642
Perimeter
83405628
Area
434781173879649
Diagonal
29488342.573961
Surface area
2608687043277894
Volume
9.0657992125023E+21
Space diagonal
36115696.333297
Perimeter
62554221
Area
1.882657708335E+14
Altitude
18057848.166649
Surface area
1.882657708335E+14
Volume
1.0684146833393E+21
Height
9829447.5246538