21888021 is an odd 8-digits composite number following 21888020
and preceding 21888022 . In scientific notation, it is written as 2.1888021 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 14527280 positive integers (up to 21888021) that are relatively prime to 21888021.
21888021 has 8 divisors, whose sum is 29313504
The reverse of 21888021 is 12088812
Previous prime number is 227
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-one million eight hundred eighty-eight thousand twenty-one
Scientific notation
2.1888021 × 10^7
Engineering notation
2.1888021 × 10^6
Prime Factorization
3 × 227 × 32141
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21888021
Product of the distinct prime numbers
The prime factorization of 21888021 is 3 × 227 × 32141.
Since it has a total of 3 prime factors.
5 , 7 , 70 , 72 , 194 , 516 , 5098 , 629 , 82575 , 41279 , 540062 , 81648 , 8977786 , 7350367 , 65489615 , 24200329 , 929516663 , 2171224 , 8003583643 , 133054896
n×2
43776042
n×3
65664063
n×4
87552084
n×5
109440105
n÷2
10944010.5
n÷3
7296007
n÷3
5472005.25
n÷5
4377604.2
n2
479085463296441
n3
1.0486232681427E+22
n4
2.2952288114197E+29
n5
5.0238016424158E+36
2 √n
4678.4635298354
3 √n
279.72771574688
4 √n
68.399294805103
5 √n
29.379290217772
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
-21888020
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 21888021 can be divided by 8 positive divisors.
The sum of these divisors (counting 21888021) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010011011111110000010101
3
Ternary
1112012000201110
4
Quaternary
1103133300111
5
Quinary
21100404041
6
Senary
2101045233
8
Octal
123376025
10
Decimal
21888021
12
Duodecimal
73b6819
16
Hexadecimal
14dfc15
20
Vigesimal
6gg011
36
Base36
d14wl
md5
6aaf7b1c8310a817c70c12dfc567c1ef
sha1
311a6c011c2c9691911918926cc29b7290f84580
sha256
5676eef275aba1459a0696232c33ceb01db05ea0c493a1b2d02c143b993fcda6
sha512
80d6860addc6803c16ee67437f00389dd2b0b6bb2cb5b18290f80bb9d8fd80e37cb24cf7e0315a5442242efda3149e8552234ed8e58afe44e3be29410651456d
ripemd-160
290fdc2b402b6d18b5b49eb9d755f1eb2571eda1
Diameter
43776042
Circumference
137526491.95044
Area
1.5050913719338E+15
Volume
4.3924628741073E+22
Surface area
6.020365487735E+15
Circumference
137526491.95044
Perimeter
87552084
Area
479085463296441
Diagonal
30954336.151707
Surface area
2874512779778646
Volume
1.0486232681427E+22
Space diagonal
37911164.449135
Perimeter
65664063
Area
2.0745009089928E+14
Altitude
18955582.224567
Surface area
2.0745009089928E+14
Volume
1.2358143730229E+21
Height
10318112.050569