21402261 is an odd 8-digits composite number following 21402260
and preceding 21402262 . In scientific notation, it is written as 2.1402261 × 10^7.
The sum of its digits is 18. It has a total of 3 prime factors and 8 positive divisors.
There are 13448736 positive integers (up to 21402261) that are relatively prime to 21402261.
21402261 has 8 divisors, whose sum is 21995424
The reverse of 21402261 is 16220412
Previous prime number is 43
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty-one million four hundred two thousand two hundred sixty-one
Scientific notation
2.1402261 × 10^7
Engineering notation
2.1402261 × 10^6
Prime Factorization
261 × 43 × 1907
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21402261
Product of the distinct prime numbers
The prime factorization of 21402261 is 261 × 43 × 1907.
Since it has a total of 3 prime factors.
6 , 1 , 11 , 76 , 191 , 900 , 7199 , 6193 , 86156 , 66364 , 195752 , 998711 , 8835013 , 3535230 , 65750217 , 62273922 , 974903755 , 597666123 , 6518319076 , 9000262300
n×2
42804522
n×3
64206783
n×4
85609044
n×5
107011305
n÷2
10701130.5
n÷3
7134087
n÷3
5350565.25
n÷5
4280452.2
n2
458056775912121
n3
9.8034506708897E+21
n4
2.0981600995901E+29
n5
4.4905370071213E+36
2 √n
4626.2577749192
3 √n
277.64288721212
4 √n
68.016599260174
5 √n
29.247714261644
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
-21402260
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 21402261 can be divided by 8 positive divisors.
The sum of these divisors (counting 21402261) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001101001001010010101
3
Ternary
1111021100101100
4
Quaternary
1101221022111
5
Quinary
20434333021
6
Senary
2042420313
8
Octal
121511225
10
Decimal
21402261
12
Duodecimal
7201699
16
Hexadecimal
1469295
20
Vigesimal
6df5d1
36
Base36
cqq39
md5
409bda3c8505dfefd4c6d464eec2cf5f
sha1
d8c7a657e660d7a2e4d7a3a3195402e77ad07756
sha256
640591a60f7ad79902716d0c551e128735b0aa69fc29b8364d2960db4fe1a007
sha512
477f29e2f0fa4551e42b807281259b59d966d0c74290f8a047bfbaef56faf681bf5a44bf360a1b0a118218db9cde9139bec4be5a7bb01ccb1a88aa5a3900bd1a
ripemd-160
3753be484432007845c31262bb5b2d17b6413e08
Diameter
42804522
Circumference
134474371.85562
Area
1.4390278021325E+15
Volume
4.1064598143329E+22
Surface area
5.7561112085302E+15
Circumference
134474371.85562
Perimeter
85609044
Area
458056775912121
Diagonal
30267367.771649
Surface area
2748340655472726
Volume
9.8034506708897E+21
Space diagonal
37069803.44885
Perimeter
64206783
Area
1.9834440215775E+14
Altitude
18534901.724425
Surface area
1.9834440215775E+14
Volume
1.1553477414023E+21
Height
10089122.59055