21988358 is an even 8-digits composite number following 21988357
and preceding 21988359 . In scientific notation, it is written as 2.1988358 × 10^7.
The sum of its digits is 44. It has a total of 4 prime factors and 16 positive divisors.
There are 8890560 positive integers (up to 21988358) that are relatively prime to 21988358.
21988358 has 16 divisors, whose sum is 33465696
The reverse of 21988358 is 85388912
Previous prime number is 343
Is Prime? no
Number parity even
Number length 8
Sum of Digits 44
Digital Root 8
Name
twenty-one million nine hundred eighty-eight thousand three hundred fifty-eight
Scientific notation
2.1988358 × 10^7
Engineering notation
2.1988358 × 10^6
Prime Factorization
2 × 133 × 343 × 241
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21988358
Product of the distinct prime numbers
The prime factorization of 21988358 is 2 × 133 × 343 × 241.
Since it has a total of 4 prime factors.
7 , 5 , 46 , 12 , 431 , 93 , 8101 , 1791 , 56954 , 66542 , 321299 , 858730 , 2825115 , 7466866 , 16782160 , 80537166 , 581387616 , 332903820 , 996448244 , 2831489280
n×2
43976716
n×3
65965074
n×4
87953432
n×5
109941790
n÷2
10994179
n÷3
7329452.6666667
n÷3
5497089.5
n÷5
4397671.6
n2
483487887536164
n3
1.0631104759809E+22
n4
2.3376053739418E+29
n5
5.1400103824957E+36
2 √n
4689.1745542259
3 √n
280.15449806889
4 √n
68.477547811132
5 √n
29.406176516873
1 , 2 , 133 , 241 , 266 , 343 , 482 , 686 , 32053 , 45619 , 64106 , 82663 , 91238 , 165326 , 10994179 , 21988358
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
-21988357
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 21988358 can be divided by 16 positive divisors.
The sum of these divisors (counting 21988358) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010011111000010000000110
3
Ternary
1112101010100122
4
Quaternary
1103320100012
5
Quinary
21112111413
6
Senary
2103141542
8
Octal
123702006
10
Decimal
21988358
12
Duodecimal
74448b2
16
Hexadecimal
14f8406
20
Vigesimal
6h8ahi
36
Base36
d3abq
md5
3c46c39e77e9c3008bc9d4f12f6adda8
sha1
de51788ad1fb10742d72ae848fcaa3934fc110d1
sha256
7fb6ac2c695e781d32c15b2ae1bf21cb58786abaac74387da573ac4d922aacf4
sha512
1aa112ae234c7703a40f23e95d8310656f59cd1919fe4db0c0599d245fcbaa841cac90261db22d791a726ed53e879736435e7efa984fdf1fed546ae891b2a50d
ripemd-160
357a4f451e28604bf7f3a45459cc820a240fd12c
Diameter
43976716
Circumference
138156927.9146
Area
1.5189219955833E+15
Volume
4.4531467483946E+22
Surface area
6.075687982333E+15
Circumference
138156927.9146
Perimeter
87953432
Area
483487887536164
Diagonal
31096234.097915
Surface area
2900927325216984
Volume
1.0631104759809E+22
Space diagonal
38084953.231014
Perimeter
65965074
Area
2.093563965142E+14
Altitude
19042476.615507
Surface area
2.093563965142E+14
Volume
1.2528877111942E+21
Height
10365411.365972