21461387 is an odd 8-digits composite number following 21461386
and preceding 21461388 . In scientific notation, it is written as 2.1461387 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 21437640 positive integers (up to 21461387) that are relatively prime to 21461387.
21461387 has 4 divisors, whose sum is 21485136
The reverse of 21461387 is 78316412
Previous prime number is 941
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million four hundred sixty-one thousand three hundred eighty-seven
Scientific notation
2.1461387 × 10^7
Engineering notation
2.1461387 × 10^6
Prime Factorization
941 × 22807
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21461387
Product of the distinct prime numbers
The prime factorization of 21461387 is 941 × 22807.
Since it has a total of 2 prime factors.
10 , 2 , 64 , 10 , 192 , 379 , 7397 , 2554 , 2275 , 4021 , 160834 , 970229 , 9361844 , 2619731 , 9199820 , 11852681 , 680116313 , 948137254 , 8705813287 , 5874964201
n×2
42922774
n×3
64384161
n×4
85845548
n×5
107306935
n÷2
10730693.5
n÷3
7153795.6666667
n÷3
5365346.75
n÷5
4292277.4
n2
460591131963769
n3
9.8849245318425E+21
n4
2.1214419084367E+29
n5
4.5529085794978E+36
2 √n
4632.6436297216
3 √n
277.898324704
4 √n
68.063526427313
5 √n
29.263856411907
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21461386
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21461387 can be divided by 4 positive divisors.
The sum of these divisors (counting 21461387) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001110111100110001011
3
Ternary
1111101100111012
4
Quaternary
1101313212023
5
Quinary
20443231022
6
Senary
2043554135
8
Octal
121674613
10
Decimal
21461387
12
Duodecimal
722b94b
16
Hexadecimal
147798b
20
Vigesimal
6e2d97
36
Base36
crzpn
md5
a2c51384b288456180cca77abc5515d3
sha1
d7dfd1326b45a355cd8a2c246899058d6b51b3fc
sha256
a4b9aa6bd9de6b463db046b40421bb56f6294b76ce25920260dc85138ce3558e
sha512
56287992ab153421fed9543f8e5c22bb695c0f3f5567e90d410ced161edded66e3ef5e724391e1616527afa20accf7a61fb79c40c28cfae3c95bca3253cb046b
ripemd-160
3b799a47ca2dae82d84566e41f8987bafeebfc84
Diameter
42922774
Circumference
134845871.47009
Area
1.446989716486E+15
Volume
4.1405875054035E+22
Surface area
5.7879588659439E+15
Circumference
134845871.47009
Perimeter
85845548
Area
460591131963769
Diagonal
30350984.562738
Surface area
2763546791782614
Volume
9.8849245318425E+21
Space diagonal
37172212.684898
Perimeter
64384161
Area
1.9944181051923E+14
Altitude
18586106.342449
Surface area
1.9944181051923E+14
Volume
1.1649495279972E+21
Height
10116994.854246