21405061 is an odd 8-digits composite number following 21405060
and preceding 21405062 . In scientific notation, it is written as 2.1405061 × 10^7.
The sum of its digits is 19. It has a total of 2 prime factors and 4 positive divisors.
There are 21374892 positive integers (up to 21405061) that are relatively prime to 21405061.
21405061 has 4 divisors, whose sum is 21435232
The reverse of 21405061 is 16050412
Previous prime number is 727
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty-one million four hundred five thousand sixty-one
Scientific notation
2.1405061 × 10^7
Engineering notation
2.1405061 × 10^6
Prime Factorization
727 × 29443
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21405061
Product of the distinct prime numbers
The prime factorization of 21405061 is 727 × 29443.
Since it has a total of 2 prime factors.
10 , 4 , 48 , 98 , 334 , 434 , 5830 , 1952 , 34619 , 37281 , 900186 , 322314 , 6942932 , 4315222 , 6508860 , 28394703 , 727457435 , 248314295 , 1396473865 , 29995494
n×2
42810122
n×3
64215183
n×4
85620244
n×5
107025305
n÷2
10702530.5
n÷3
7135020.3333333
n÷3
5351265.25
n÷5
4281012.2
n2
458176636413721
n3
9.8072988512105E+21
n4
2.0992583015539E+29
n5
4.4934751999518E+36
2 √n
4626.5603854267
3 √n
277.65499444049
4 √n
68.018823758036
5 √n
29.248479501491
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
-21405060
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 21405061 can be divided by 4 positive divisors.
The sum of these divisors (counting 21405061) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001101001110110000101
3
Ternary
1111021111020001
4
Quaternary
1101221312011
5
Quinary
20434430221
6
Senary
2042441301
8
Octal
121516605
10
Decimal
21405061
12
Duodecimal
7203231
16
Hexadecimal
1469d85
20
Vigesimal
6dfcd1
36
Base36
cqs91
md5
90a7a35a9a203d811174f69dfbf5e5ee
sha1
f70e1fd706a33c993d6cb5c0f5996b2a7e01f9fa
sha256
083e3668bf3920e4c8973bebac61711bdab4415975c28869a04f43e146f0af43
sha512
8b3817632198171802213a8a6a02342c52742fb66760cd2924cd8b0efb25b666aa3fb0ee8a420e1f7ca1f36e02204e08dfb09773623071e3fd61c8e2415529f6
ripemd-160
c113a843bf3986109bc2b43bf472a8261e3b357a
Diameter
42810122
Circumference
134491964.77448
Area
1.4394043550038E+15
Volume
4.1080717363363E+22
Surface area
5.7576174200153E+15
Circumference
134491964.77448
Perimeter
85620244
Area
458176636413721
Diagonal
30271327.569623
Surface area
2749059818482326
Volume
9.8072988512105E+21
Space diagonal
37074653.191111
Perimeter
64215183
Area
1.9839630327739E+14
Altitude
18537326.595556
Surface area
1.9839630327739E+14
Volume
1.1558012538023E+21
Height
10090442.523208