21090929 is an odd 8-digits composite number following 21090928
and preceding 21090930 . In scientific notation, it is written as 2.1090929 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 21079284 positive integers (up to 21090929) that are relatively prime to 21090929.
21090929 has 4 divisors, whose sum is 21102576
The reverse of 21090929 is 92909012
Previous prime number is 2243
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million ninety thousand nine hundred twenty-nine
Scientific notation
2.1090929 × 10^7
Engineering notation
2.1090929 × 10^6
Prime Factorization
2243 × 9403
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21090929
Product of the distinct prime numbers
The prime factorization of 21090929 is 2243 × 9403.
Since it has a total of 2 prime factors.
4 , 8 , 77 , 80 , 945 , 902 , 7351 , 8249 , 34811 , 75293 , 597547 , 447498 , 46169 , 7247113 , 96316814 , 47058075 , 730109160 , 588867507 , 8332620225 , 8621727334
n×2
42181858
n×3
63272787
n×4
84363716
n×5
105454645
n÷2
10545464.5
n÷3
7030309.6666667
n÷3
5272732.25
n÷5
4218185.8
n2
444827286083041
n3
9.3818207080401E+21
n4
1.97871314444E+29
n5
4.1732898440752E+36
2 √n
4592.4861458691
3 √n
276.2900446307
4 √n
67.767884324871
5 √n
29.162123304935
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
-21090928
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 21090929 can be divided by 4 positive divisors.
The sum of these divisors (counting 21090929) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000011101001001110001
3
Ternary
1110200112022112
4
Quaternary
1100131021301
5
Quinary
20344402204
6
Senary
2032015105
8
Octal
120351161
10
Decimal
21090929
12
Duodecimal
7091495
16
Hexadecimal
141d271
20
Vigesimal
6bg769
36
Base36
ck1v5
md5
ee17d63f3eed5d56da685fbab53c4f55
sha1
caf3fd9908cbfe291a11c36d887efd0c03fc3154
sha256
6763f4c0f5943f1c1f5958d89f6516251343a0cb5c43e62863eabe2437d4dd62
sha512
2eed3e868f060994f4feb5f289f0ae0f88691adbd9f3e34c828e586f103ad484ee4a153ae31448caa2f97c80f099bde21fc06bea8f52850f54b2795d11a06b36
ripemd-160
4fd0967ec5669b4ab86d56120fab4a7c0ac6a2e0
Diameter
42181858
Circumference
132518215.20757
Area
1.3974661340748E+15
Volume
3.9298478684901E+22
Surface area
5.5898645362991E+15
Circumference
132518215.20757
Perimeter
84363716
Area
444827286083041
Diagonal
29827077.834848
Surface area
2668963716498246
Volume
9.3818207080401E+21
Space diagonal
36530560.606828
Perimeter
63272787
Area
1.926158650222E+14
Altitude
18265280.303414
Surface area
1.926158650222E+14
Volume
1.1056581737553E+21
Height
9942359.2782827