21388101 is an odd 8-digits composite number following 21388100
and preceding 21388102 . In scientific notation, it is written as 2.1388101 × 10^7.
The sum of its digits is 24. It has a total of 4 prime factors and 16 positive divisors.
There are 11923200 positive integers (up to 21388101) that are relatively prime to 21388101.
21388101 has 16 divisors, whose sum is 33387648
The reverse of 21388101 is 10188312
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6
Name
twenty-one million three hundred eighty-eight thousand one hundred one
Scientific notation
2.1388101 × 10^7
Engineering notation
2.1388101 × 10^6
Prime Factorization
41 × 3 × 7 × 24841
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21388101
Product of the distinct prime numbers
The prime factorization of 21388101 is 41 × 3 × 7 × 24841.
Since it has a total of 4 prime factors.
6 , 4 , 10 , 60 , 436 , 675 , 3361 , 4147 , 60800 , 92692 , 255005 , 324904 , 3620314 , 335363 , 70248578 , 92384841 , 912671058 , 455112015 , 5768183822 , 4115702898
n×2
42776202
n×3
64164303
n×4
85552404
n×5
106940505
n÷2
10694050.5
n÷3
7129367
n÷3
5347025.25
n÷5
4277620.2
n2
457450864386201
n3
9.7840052900294E+21
n4
2.0926129332768E+29
n5
4.4757016770831E+36
2 √n
4624.7271270854
3 √n
277.58164304999
4 √n
68.005346312518
5 √n
29.243843107288
1 , 3 , 7 , 21 , 41 , 123 , 287 , 861 , 24841 , 74523 , 173887 , 521661 , 1018481 , 3055443 , 7129367 , 21388101
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
-21388100
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 21388101 can be divided by 16 positive divisors.
The sum of these divisors (counting 21388101) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010001100101101101000101
3
Ternary
1111020121221220
4
Quaternary
1101211231011
5
Quinary
20433404401
6
Senary
2042230553
8
Octal
121455505
10
Decimal
21388101
12
Duodecimal
71b5459
16
Hexadecimal
1465b45
20
Vigesimal
6dda51
36
Base36
cqf5x
md5
bd466881f7c4dceed443f851173e103c
sha1
9d123a4763f84882f9401ebe8a914a32339382ef
sha256
98f3a7429a71413fe12175bcfd9bf9f5f749ee470995132d9c01a4a8add173b2
sha512
9f6ca42c0d7da32e2518825d081ec2979fe6d8dbe0c05822760b1e479eb0c4b986eb3322bc0ccf5f71069d507e8469f348a3429b367985d3ad8ac0beb1a9fce4
ripemd-160
e5ea9fd381da70b5fa29a8271f3e73e5ebeefe93
Diameter
42776202
Circumference
134385401.95167
Area
1.437124274934E+15
Volume
4.0983145522453E+22
Surface area
5.748497099736E+15
Circumference
134385401.95167
Perimeter
85552404
Area
457450864386201
Diagonal
30247342.507606
Surface area
2744705186317206
Volume
9.7840052900294E+21
Space diagonal
37045277.609415
Perimeter
64164303
Area
1.980820347708E+14
Altitude
18522638.804707
Surface area
1.980820347708E+14
Volume
1.1530560812908E+21
Height
10082447.502535