20218555 is an odd 8-digits composite number following 20218554
and preceding 20218556 . In scientific notation, it is written as 2.0218555 × 10^7.
The sum of its digits is 28. It has a total of 4 prime factors and 16 positive divisors.
There are 13767552 positive integers (up to 20218555) that are relatively prime to 20218555.
20218555 has 16 divisors, whose sum is 27921600
The reverse of 20218555 is 55581202
Previous prime number is 149
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million two hundred eighteen thousand five hundred fifty-five
Scientific notation
2.0218555 × 10^7
Engineering notation
2.0218555 × 10^6
Prime Factorization
7 × 5 × 149 × 3877
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20218555
Product of the distinct prime numbers
The prime factorization of 20218555 is 7 × 5 × 149 × 3877.
Since it has a total of 4 prime factors.
4 , 7 , 58 , 47 , 498 , 79 , 9878 , 3613 , 70487 , 62771 , 632354 , 236859 , 3173784 , 2622451 , 34776206 , 97616207 , 564861362 , 125196291 , 4634304476 , 3445011508
n×2
40437110
n×3
60655665
n×4
80874220
n×5
101092775
n÷2
10109277.5
n÷3
6739518.3333333
n÷3
5054638.75
n÷5
4043711
n2
408789966288025
n3
8.2651424168426E+21
n4
1.6710923653776E+29
n5
3.3787072899468E+36
2 √n
4496.5047536948
3 √n
272.42693100219
4 √n
67.055982236448
5 √n
28.916786117682
1 , 5 , 7 , 35 , 149 , 745 , 1043 , 3877 , 5215 , 19385 , 27139 , 135695 , 577673 , 2888365 , 4043711 , 20218555
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20218554
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20218555 can be divided by 16 positive divisors.
The sum of these divisors (counting 20218555) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001101001000001010111011
3
Ternary
1102001012122101
4
Quaternary
1031020022323
5
Quinary
20133443210
6
Senary
2001204231
8
Octal
115101273
10
Decimal
20218555
12
Duodecimal
6930677
16
Hexadecimal
13482bb
20
Vigesimal
66767f
36
Base36
c1cqj
md5
77d1f8041a2b1f725b490ade9339cd7c
sha1
479348b45b2f9c5e4df0a5aa8cd435126862b4a9
sha256
efa400448889801562426eac1f8d9f5e5ef8057ed15538fd75adf7d488f8269a
sha512
d81dbb7900003107bc2621714fe61c257849db27ce6583f711dd713fb97819388ee6da72232c14289d18578f5c053685c6349ccef4ba2fb0997c50a82a005d46
ripemd-160
ceeb238cb023bf955fd0b6840275229d1d24cb67
Diameter
40437110
Circumference
127036927.7084
Area
1.2842515549517E+15
Volume
3.4620947596835E+22
Surface area
5.1370062198067E+15
Circumference
127036927.7084
Perimeter
80874220
Area
408789966288025
Diagonal
28593354.692586
Surface area
2452739797728150
Volume
8.2651424168426E+21
Space diagonal
35019564.515626
Perimeter
60655665
Area
1.7701124780881E+14
Altitude
17509782.257813
Surface area
1.7701124780881E+14
Volume
9.7405637507033E+20
Height
9531118.2308621