21031779 is an odd 8-digits composite number following 21031778
and preceding 21031780 . In scientific notation, it is written as 2.1031779 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 13970016 positive integers (up to 21031779) that are relatively prime to 21031779.
21031779 has 8 divisors, whose sum is 28144720
The reverse of 21031779 is 97713012
Previous prime number is 277
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-one million thirty-one thousand seven hundred seventy-nine
Scientific notation
2.1031779 × 10^7
Engineering notation
2.1031779 × 10^6
Prime Factorization
3 × 277 × 25309
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21031779
Product of the distinct prime numbers
The prime factorization of 21031779 is 3 × 277 × 25309.
Since it has a total of 3 prime factors.
1 , 5 , 74 , 8 , 982 , 68 , 1982 , 1442 , 39705 , 67391 , 739795 , 42675 , 5415699 , 7197239 , 90538911 , 25390639 , 560684883 , 739284360 , 8414332218 , 4466663387
n×2
42063558
n×3
63095337
n×4
84127116
n×5
105158895
n÷2
10515889.5
n÷3
7010593
n÷3
5257944.75
n÷5
4206355.8
n2
442335727904841
n3
9.3031072730987E+21
n4
1.9566089618111E+29
n5
4.115096727423E+36
2 √n
4586.0417573328
3 √n
276.03151551484
4 √n
67.720320121311
5 √n
29.145747754012
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
-21031778
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 21031779 can be divided by 8 positive divisors.
The sum of these divisors (counting 21031779) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000001110101101100011
3
Ternary
1110120112011210
4
Quaternary
1100032231203
5
Quinary
20341004104
6
Senary
2030441203
8
Octal
120165543
10
Decimal
21031779
12
Duodecimal
7063203
16
Hexadecimal
140eb63
20
Vigesimal
6b8j8j
36
Base36
cis83
md5
50d8ac5157fb2cf68fd7555a48a00962
sha1
9669472cd5f9563ca2a074b683f7607500eb7ab9
sha256
ff6ee15e820ba6c07fc093b8d5b515752d0c8ec5b29ca85d0c85a99c9fe8026a
sha512
8ffaa5297af54d2384b6050d509fac44feac5e53e7ada6c2ee88f2003a51f4817ac2e6cd3d48a31ca86b3ab49584b1422f0b1d75952305dffb0eb12e49e0aa5f
ripemd-160
c97849ac6a494e1420af4e121ea02f1dab5cf46f
Diameter
42063558
Circumference
132146564.79665
Area
1.3896386732061E+15
Volume
3.8968764619633E+22
Surface area
5.5585546928246E+15
Circumference
132146564.79665
Perimeter
84127116
Area
442335727904841
Diagonal
29743427.102634
Surface area
2654014367429046
Volume
9.3031072730987E+21
Space diagonal
36428109.80156
Perimeter
63095337
Area
1.9153698868354E+14
Altitude
18214054.90078
Surface area
1.9153698868354E+14
Volume
1.0963817064857E+21
Height
9914475.7008779