20218138 is an even 8-digits composite number following 20218137
and preceding 20218139 . In scientific notation, it is written as 2.0218138 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors.
There are 9782940 positive integers (up to 20218138) that are relatively prime to 20218138.
20218138 has 8 divisors, whose sum is 31305600
The reverse of 20218138 is 83181202
Previous prime number is 31
Is Prime? no
Number parity even
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million two hundred eighteen thousand one hundred thirty-eight
Scientific notation
2.0218138 × 10^7
Engineering notation
2.0218138 × 10^6
Prime Factorization
2 × 31 × 326099
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20218138
Product of the distinct prime numbers
The prime factorization of 20218138 is 2 × 31 × 326099.
Since it has a total of 3 prime factors.
3 , 5 , 88 , 66 , 202 , 775 , 8161 , 1380 , 17059 , 30658 , 90746 , 47093 , 2220974 , 4928567 , 55292283 , 16092659 , 769607861 , 39433627 , 5171719081 , 551841137
n×2
40436276
n×3
60654414
n×4
80872552
n×5
101090690
n÷2
10109069
n÷3
6739379.3333333
n÷3
5054534.5
n÷5
4043627.6
n2
408773104187044
n3
8.264631031142E+21
n4
1.6709545070671E+29
n5
3.3783588815605E+36
2 √n
4496.4583841063
3 √n
272.42505808873
4 √n
67.055636482747
5 √n
28.916666837156
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
-20218137
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 20218138 can be divided by 8 positive divisors.
The sum of these divisors (counting 20218138) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101001000000100011010
3
Ternary
1102001012001221
4
Quaternary
1031020010122
5
Quinary
20133440023
6
Senary
2001202254
8
Octal
115100432
10
Decimal
20218138
12
Duodecimal
693038a
16
Hexadecimal
134811a
20
Vigesimal
66756i
36
Base36
c1cey
md5
068ebe1cfe76cdbf01ae884547d742d5
sha1
f85076137e7da13abfeb07a29ba60b3195138d8f
sha256
bd8b02baa5c137f7f3badf1f96f314a94c680cff73cd9a90d70d819ea09e6c01
sha512
00566941cc6b2e06d63c711ec0f2c11fc9600ba05d72ebbd93188d83e8d930ef20fd5fe607c6156dfed7e1bb85d0386bfd1bbecb3b7f233afc517a290d44f907
ripemd-160
e19c212231388f60a5c7d56023c7097ca60a1401
Diameter
40436276
Circumference
127034307.62013
Area
1.2841985810991E+15
Volume
3.4618805509421E+22
Surface area
5.1367943243964E+15
Circumference
127034307.62013
Perimeter
80872552
Area
408773104187044
Diagonal
28592764.965531
Surface area
2452638625122264
Volume
8.264631031142E+21
Space diagonal
35018842.250439
Perimeter
60654414
Area
1.770039463049E+14
Altitude
17509421.12522
Surface area
1.770039463049E+14
Volume
9.7399610768755E+20
Height
9530921.6551769