21461389 is an odd 8-digits composite number following 21461388
and preceding 21461390 . In scientific notation, it is written as 2.1461389 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors.
There are 21032400 positive integers (up to 21461389) that are relatively prime to 21461389.
21461389 has 8 divisors, whose sum is 21894912
The reverse of 21461389 is 98316412
Previous prime number is 101
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-one million four hundred sixty-one thousand three hundred eighty-nine
Scientific notation
2.1461389 × 10^7
Engineering notation
2.1461389 × 10^6
Prime Factorization
2063 × 101 × 103
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21461389
Product of the distinct prime numbers
The prime factorization of 21461389 is 2063 × 101 × 103.
Since it has a total of 3 prime factors.
3 , 4 , 51 , 76 , 16 , 260 , 9944 , 1162 , 72559 , 69806 , 16126 , 494686 , 4791692 , 7838935 , 78059595 , 28914982 , 954872212 , 311357487 , 5996597606 , 3265327792
n×2
42922778
n×3
64384167
n×4
85845556
n×5
107306945
n÷2
10730694.5
n÷3
7153796.3333333
n÷3
5365347.25
n÷5
4292277.8
n2
460591217809321
n3
9.8849272953896E+21
n4
2.1214426992307E+29
n5
4.5529107009401E+36
2 √n
4632.6438455811
3 √n
277.8983333365
4 √n
68.063528013034
5 √n
29.26385695733
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
-21461388
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 21461389 can be divided by 8 positive divisors.
The sum of these divisors (counting 21461389) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001110111100110001101
3
Ternary
1111101100111021
4
Quaternary
1101313212031
5
Quinary
20443231024
6
Senary
2043554141
8
Octal
121674615
10
Decimal
21461389
12
Duodecimal
722b951
16
Hexadecimal
147798d
20
Vigesimal
6e2d99
36
Base36
crzpp
md5
195ebd72b62f42809910769e29dadbb6
sha1
4681b6853f8a4658b92f6511a65c65286a4f424f
sha256
41cd5dd334db9bcfecb9615c4de6b7dbf297639ba182be8aabf7e2a39deea7f9
sha512
a80a926e94738f314b2eb3bb9c893d89c36765826b4b6890f4c14b7dad75b796228133c39b39f2070e5f199ed3f122abe31331837612d9c5c77e822a0afe96fc
ripemd-160
4acc0e850de6a3ae913a0bff49b45f1af1fa7e09
Diameter
42922778
Circumference
134845884.03647
Area
1.4469899861777E+15
Volume
4.1405886629953E+22
Surface area
5.787959944711E+15
Circumference
134845884.03647
Perimeter
85845556
Area
460591217809321
Diagonal
30350987.391165
Surface area
2763547306855926
Volume
9.8849272953896E+21
Space diagonal
37172216.149
Perimeter
64384167
Area
1.9944184769144E+14
Altitude
18586108.0745
Surface area
1.9944184769144E+14
Volume
1.1649498536843E+21
Height
10116995.797055