20018947 is an odd 8-digits composite number following 20018946
and preceding 20018948 . In scientific notation, it is written as 2.0018947 × 10^7.
The sum of its digits is 31. It has a total of 5 prime factors and 24 positive divisors.
There are 17001600 positive integers (up to 20018947) that are relatively prime to 20018947.
20018947 has 24 divisors, whose sum is 23411808
The reverse of 20018947 is 74981002
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million eighteen thousand nine hundred forty-seven
Scientific notation
2.0018947 × 10^7
Engineering notation
2.0018947 × 10^6
Prime Factorization
13 × 71 × 23 × 23 × 41
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
870389
Product of the distinct prime numbers
The prime factorization of 20018947 is 13 × 71 × 23 × 23 × 41.
Since it has a total of 5 prime factors.
5 , 6 , 97 , 75 , 302 , 643 , 5472 , 1009 , 7323 , 36325 , 374182 , 983975 , 7369850 , 8824531 , 94748244 , 90978055 , 833866848 , 480551504 , 3151086087 , 432329471
n×2
40037894
n×3
60056841
n×4
80075788
n×5
100094735
n÷2
10009473.5
n÷3
6672982.3333333
n÷3
5004736.75
n÷5
4003789.4
n2
400758238988809
n3
8.0227579461303E+21
n4
1.6060716611741E+29
n5
3.2151863463247E+36
2 √n
4474.2537925335
3 √n
271.5274513901
4 √n
66.8898631523
5 √n
28.859463014692
1 , 13 , 23 , 41 , 71 , 299 , 529 , 533 , 923 , 943 , 1633 , 2911 , 6877 , 12259 , 21229 , 21689 , 37559 , 37843 , 66953 , 281957 , 488267 , 870389 , 1539919 , 20018947
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20018946
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20018947 can be divided by 24 positive divisors.
The sum of these divisors (counting 20018947) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1001100010111011100000011
3
Ternary
1101200001211111
4
Quaternary
1030113130003
5
Quinary
20111101242
6
Senary
1553024151
8
Octal
114273403
10
Decimal
20018947
12
Duodecimal
6855057
16
Hexadecimal
1317703
20
Vigesimal
652777
36
Base36
bx2pv
md5
7a6ca87c57eea7b892c21d8f6cfa29c2
sha1
9bcc65190282202f21622adeba56cd64f90a6293
sha256
6f0037c7121594b9a85aa4ee224e6ab59d4bb1751bf1b17d4a0667f10f39b685
sha512
5d7cee0eddb8f793e86d8dbdff50127d9a50c6921154ece42a8dac4f61dcc2f917a1ed2c5c1ccb291950909e4749bbf40332dc214e9da718092135d3dfbda547
ripemd-160
22cd629a5bb555a6ca7315d56c8027c347801d54
Diameter
40037894
Circumference
125782753.65561
Area
1.2590191394728E+15
Volume
3.3605649900123E+22
Surface area
5.0360765578913E+15
Circumference
125782753.65561
Perimeter
80075788
Area
400758238988809
Diagonal
28311066.351828
Surface area
2404549433932854
Volume
8.0227579461303E+21
Space diagonal
34673833.318029
Perimeter
60056841
Area
1.7353340787011E+14
Altitude
17336916.659014
Surface area
1.7353340787011E+14
Volume
9.454910912545E+20
Height
9437022.1172761