20180639 is an odd 8-digits composite number following 20180638
and preceding 20180640 . In scientific notation, it is written as 2.0180639 × 10^7.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 20067720 positive integers (up to 20180639) that are relatively prime to 20180639.
20180639 has 4 divisors, whose sum is 20293560
The reverse of 20180639 is 93608102
Previous prime number is 179
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million one hundred eighty thousand six hundred thirty-nine
Scientific notation
2.0180639 × 10^7
Engineering notation
2.0180639 × 10^6
Prime Factorization
179 × 112741
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20180639
Product of the distinct prime numbers
The prime factorization of 20180639 is 179 × 112741.
Since it has a total of 2 prime factors.
6 , 9 , 49 , 96 , 453 , 745 , 8599 , 5893 , 48564 , 37849 , 1767 , 831676 , 3905636 , 3515417 , 21086172 , 73715991 , 187662933 , 657633319 , 3845057287 , 3602131688
n×2
40361278
n×3
60541917
n×4
80722556
n×5
100903195
n÷2
10090319.5
n÷3
6726879.6666667
n÷3
5045159.75
n÷5
4036127.8
n2
407258190448321
n3
8.2187305212308E+21
n4
1.6585923368724E+29
n5
3.3471453198588E+36
2 √n
4492.2866115153
3 √n
272.25652971904
4 √n
67.024522463911
5 √n
28.905932402069
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
-20180638
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 20180639 can be divided by 4 positive divisors.
The sum of these divisors (counting 20180639) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100111110111010011111
3
Ternary
1101222021122002
4
Quaternary
1030332322133
5
Quinary
20131240024
6
Senary
2000312515
8
Octal
114767237
10
Decimal
20180639
12
Duodecimal
691273b
16
Hexadecimal
133ee9f
20
Vigesimal
662bbj
36
Base36
c0jhb
md5
2cac828a8b8d1488fcdd59917354fd60
sha1
533313b91eba8561eba798e274b03b9c03fdfac7
sha256
73739ce5bb2e2e7e468c8af91b2400ff4f1d06f0df760ae059bb57c652214ae0
sha512
55b096fb958581789fe39d7262718ace2821e44cd2cc77856a6a2a90121e2a4550dc54dd4a8584eb0308a2462d13a69a84a413d9060b5b52d722c11a83b91ef9
ripemd-160
1edaed5ff697e842d4a42fe4e2dc4e99af37c425
Diameter
40361278
Circumference
126798694.4543
Area
1.2794393392267E+15
Volume
3.4426537903111E+22
Surface area
5.1177573569069E+15
Circumference
126798694.4543
Perimeter
80722556
Area
407258190448321
Diagonal
28539733.371155
Surface area
2443549142689926
Volume
8.2187305212308E+21
Space diagonal
34953892.077206
Perimeter
60541917
Area
1.7634796941376E+14
Altitude
17476946.038603
Surface area
1.7634796941376E+14
Volume
9.6858668071786E+20
Height
9513244.4570518