21152018 is an even 8-digits composite number following 21152017
and preceding 21152019 . In scientific notation, it is written as 2.1152018 × 10^7.
The sum of its digits is 20. It has a total of 4 prime factors and 16 positive divisors.
There are 10402560 positive integers (up to 21152018) that are relatively prime to 21152018.
21152018 has 16 divisors, whose sum is 32253336
The reverse of 21152018 is 81025112
Previous prime number is 113
Is Prime? no
Number parity even
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty-one million one hundred fifty-two thousand eighteen
Scientific notation
2.1152018 × 10^7
Engineering notation
2.1152018 × 10^6
Prime Factorization
2 × 173 × 113 × 541
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21152018
Product of the distinct prime numbers
The prime factorization of 21152018 is 2 × 173 × 113 × 541.
Since it has a total of 4 prime factors.
10 , 3 , 57 , 44 , 833 , 811 , 1969 , 7266 , 67565 , 54735 , 459884 , 65183 , 8563039 , 9601772 , 95702141 , 42655477 , 851396481 , 484508929 , 8082238073 , 9491669374
n×2
42304036
n×3
63456054
n×4
84608072
n×5
105760090
n÷2
10576009
n÷3
7050672.6666667
n÷3
5288004.5
n÷5
4230403.6
n2
447407865472324
n3
9.4635792238122E+21
n4
2.001737980865E+29
n5
4.234079780254E+36
2 √n
4599.1323094688
3 √n
276.5565417104
4 √n
67.816902830112
5 √n
29.178997142322
1 , 2 , 113 , 173 , 226 , 346 , 541 , 1082 , 19549 , 39098 , 61133 , 93593 , 122266 , 187186 , 10576009 , 21152018
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
-21152017
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 21152018 can be divided by 16 positive divisors.
The sum of these divisors (counting 21152018) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000101100000100010010
3
Ternary
1110210122010002
4
Quaternary
1100230010102
5
Quinary
20403331033
6
Senary
2033210002
8
Octal
120540422
10
Decimal
21152018
12
Duodecimal
7100902
16
Hexadecimal
142c112
20
Vigesimal
6c400i
36
Base36
cld02
md5
b2b4b44e011fa4598a32462c63207e89
sha1
27e2c5118ee72733cb23d387c3068b0875e2bd9f
sha256
0114985c78537eb64d0d4ed5c095b98301a81cc7ca1ef58d2999118af39b5f53
sha512
2e8f50f466e133899d2ce6001eba35b2a5645272ade99d73e16ec6934a3695579ad8c443dc9e4b42b19e1900292449a1b0e1e4d397c5f41c2fe40f9ba9c561a4
ripemd-160
59424c5f30aaf1ea1fc9a1e4fccadd957823fd22
Diameter
42304036
Circumference
132902048.7148
Area
1.4055732633261E+15
Volume
3.9640947954924E+22
Surface area
5.6222930533046E+15
Circumference
132902048.7148
Perimeter
84608072
Area
447407865472324
Diagonal
29913470.72716
Surface area
2684447192833944
Volume
9.4635792238122E+21
Space diagonal
36636369.858611
Perimeter
63456054
Area
1.93733288676E+14
Altitude
18318184.929306
Surface area
1.93733288676E+14
Volume
1.1152935072423E+21
Height
9971156.9090533