21014721 is an odd 8-digits composite number following 21014720
and preceding 21014722 . In scientific notation, it is written as 2.1014721 × 10^7.
The sum of its digits is 18. It has a total of 4 prime factors and 16 positive divisors.
There are 11080800 positive integers (up to 21014721) that are relatively prime to 21014721.
21014721 has 16 divisors, whose sum is 30345280
The reverse of 21014721 is 12741012
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty-one million fourteen thousand seven hundred twenty-one
Scientific notation
2.1014721 × 10^7
Engineering notation
2.1014721 × 10^6
Prime Factorization
189 × 3 × 13 × 2851
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21014721
Product of the distinct prime numbers
The prime factorization of 21014721 is 189 × 3 × 13 × 2851.
Since it has a total of 4 prime factors.
4 , 4 , 71 , 48 , 715 , 937 , 486 , 5379 , 15025 , 93343 , 730370 , 760999 , 3680764 , 6962578 , 7203884 , 68148733 , 636958362 , 147283949 , 6372264833 , 2175981438
n×2
42029442
n×3
63044163
n×4
84058884
n×5
105073605
n÷2
10507360.5
n÷3
7004907
n÷3
5253680.25
n÷5
4202944.2
n2
441618498707841
n3
9.2804895387841E+21
n4
1.9502689840097E+29
n5
4.0984358573917E+36
2 √n
4584.1816063503
3 √n
275.95686944181
4 √n
67.706584660211
5 √n
29.141018439039
1 , 3 , 13 , 39 , 189 , 567 , 2457 , 2851 , 7371 , 8553 , 37063 , 111189 , 538839 , 1616517 , 7004907 , 21014721
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
-21014720
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 21014721 can be divided by 16 positive divisors.
The sum of these divisors (counting 21014721) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000001010100011000001
3
Ternary
1110112122210000
4
Quaternary
1100022203001
5
Quinary
20334432341
6
Senary
2030230213
8
Octal
120124301
10
Decimal
21014721
12
Duodecimal
7055369
16
Hexadecimal
140a8c1
20
Vigesimal
6b6gg1
36
Base36
cif29
md5
77e38e5c671ac97b1f5010cb8340ea5a
sha1
8bd177bef2e93a030d168039a65ed3dbbb9a98b5
sha256
79c3f169aade24301b87858c8b1027fa2cc772a723b9439ca06334af704703cb
sha512
4a1c2b496306853b72c94b5fedb9f94edaceaf6c2378328f15daeb58265ea0e45e2aa8abff2103897a4df88892e2e98a8e5fef7adc3e45cf2273621310daa83c
ripemd-160
f5aa67c689f323e7e1f81f495bfe584da74f689b
Diameter
42029442
Circumference
132039386.22168
Area
1.3873854312299E+15
Volume
3.8874023675682E+22
Surface area
5.5495417249196E+15
Circumference
132039386.22168
Perimeter
84058884
Area
441618498707841
Diagonal
29719303.447687
Surface area
2649710992247046
Volume
9.2804895387841E+21
Space diagonal
36398564.478885
Perimeter
63044163
Area
1.9122641933107E+14
Altitude
18199282.239442
Surface area
1.9122641933107E+14
Volume
1.0937161809342E+21
Height
9906434.4825622