21998215 is an odd 8-digits composite number following 21998214
and preceding 21998216 . In scientific notation, it is written as 2.1998215 × 10^7.
The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors.
There are 17541792 positive integers (up to 21998215) that are relatively prime to 21998215.
21998215 has 8 divisors, whose sum is 26483040
The reverse of 21998215 is 51289912
Previous prime number is 317
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty-one million nine hundred ninety-eight thousand two hundred fifteen
Scientific notation
2.1998215 × 10^7
Engineering notation
2.1998215 × 10^6
Prime Factorization
5 × 317 × 13879
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21998215
Product of the distinct prime numbers
The prime factorization of 21998215 is 5 × 317 × 13879.
Since it has a total of 3 prime factors.
6 , 4 , 49 , 27 , 977 , 628 , 1631 , 6572 , 10208 , 45208 , 351218 , 658458 , 6883429 , 8560837 , 18197080 , 63107256 , 646798590 , 644903826 , 9908152020 , 6281436338
n×2
43996430
n×3
65994645
n×4
87992860
n×5
109991075
n÷2
10999107.5
n÷3
7332738.3333333
n÷3
5499553.75
n÷5
4399643
n2
483921463186225
n3
1.0645408390285E+22
n4
2.341799825323E+29
n5
5.1515416044417E+36
2 √n
4690.2254743242
3 √n
280.19635461784
4 √n
68.485220845992
5 √n
29.408812500158
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
-21998214
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 21998215 can be divided by 8 positive divisors.
The sum of these divisors (counting 21998215) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010011111010101010000111
3
Ternary
1112101121212201
4
Quaternary
1103322222013
5
Quinary
21112420330
6
Senary
2103255331
8
Octal
123725207
10
Decimal
21998215
12
Duodecimal
744a547
16
Hexadecimal
14faa87
20
Vigesimal
6h9faf
36
Base36
d3hxj
md5
521d17549cff11ed3ffe1624308751e5
sha1
19d1766ac326238c543f09bc71799b2f4e460d60
sha256
701eeb336ae6e6d4b7e7cf8ccbd10aa864ec2948e3fdad5a90a4cb4e9b3c8e23
sha512
a00cd0852b4abd60bb0ec21acd202137434536b3e7fe6bab448bab66aad27126e586736bf650935c5a7d35e4ae830882ef01b9db05a6ab21508a0336ef559d1e
ripemd-160
8dadcc534f50d3da56263f9ce7ed5c755c36d605
Diameter
43996430
Circumference
138218861.27218
Area
1.5202841136603E+15
Volume
4.4591382391177E+22
Surface area
6.0811364546411E+15
Circumference
138218861.27218
Perimeter
87992860
Area
483921463186225
Diagonal
31110174.000999
Surface area
2903528779117350
Volume
1.0645408390285E+22
Space diagonal
38102026.055824
Perimeter
65994645
Area
2.095441402779E+14
Altitude
19051013.027912
Surface area
2.095441402779E+14
Volume
1.2545734102118E+21
Height
10370058.000333