20998021 is an odd 8-digits composite number following 20998020
and preceding 20998022 . In scientific notation, it is written as 2.0998021 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 18084240 positive integers (up to 20998021) that are relatively prime to 20998021.
20998021 has 8 divisors, whose sum is 24112800
The reverse of 20998021 is 12089902
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million nine hundred ninety-eight thousand twenty-one
Scientific notation
2.0998021 × 10^7
Engineering notation
2.0998021 × 10^6
Prime Factorization
19 × 11 × 100469
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20998021
Product of the distinct prime numbers
The prime factorization of 20998021 is 19 × 11 × 100469.
Since it has a total of 3 prime factors.
1 , 5 , 55 , 59 , 900 , 161 , 6441 , 3475 , 73864 , 38579 , 596952 , 427574 , 4935212 , 2671283 , 99973761 , 99140911 , 364814785 , 764724463 , 6651229751 , 5606725854
n×2
41996042
n×3
62994063
n×4
83992084
n×5
104990105
n÷2
10499010.5
n÷3
6999340.3333333
n÷3
5249505.25
n÷5
4199604.2
n2
440916885916441
n3
9.258382029728E+21
n4
1.9440770028625E+29
n5
4.0821769731724E+36
2 √n
4582.3597632661
3 √n
275.88375084055
4 √n
67.693129365291
5 √n
29.136385403217
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
-20998020
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 20998021 can be divided by 8 positive divisors.
The sum of these divisors (counting 20998021) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000110011110000101
3
Ternary
1110111210212111
4
Quaternary
1100012132011
5
Quinary
20333414041
6
Senary
2030021021
8
Octal
120063605
10
Decimal
20998021
12
Duodecimal
7047771
16
Hexadecimal
1406785
20
Vigesimal
6b4f11
36
Base36
ci26d
md5
aba56dbf886025a2343e58fbbf5ddcf0
sha1
a4e1b0bbde549a924ad4ef2a04db03705fee748d
sha256
f3457f59f190473f9acc0d0a43e30685c2a9228dc9894002bd2594896b07e701
sha512
b8a1cf5243b9c98d49a094a51c6704ed71f4ac83612549876dabbeb8e3525167ff1021e85a589a79f761e2ed814a6b80c462e96cdc698926b78b22aa23e2a5af
ripemd-160
0617c184616d5117bc1be1ab2492c082e2efa4b3
Diameter
41996042
Circumference
131934457.02705
Area
1.3851812496388E+15
Volume
3.8781419958295E+22
Surface area
5.5407249985551E+15
Circumference
131934457.02705
Perimeter
83992084
Area
440916885916441
Diagonal
29695686.081195
Surface area
2645501315498646
Volume
9.258382029728E+21
Space diagonal
36369639.230398
Perimeter
62994063
Area
1.9092261208058E+14
Altitude
18184819.615199
Surface area
1.9092261208058E+14
Volume
1.0911107860061E+21
Height
9898562.027065