20921499 is an odd 8-digits composite number following 20921498
and preceding 20921500 . In scientific notation, it is written as 2.0921499 × 10^7.
The sum of its digits is 36. It has a total of 4 prime factors and 16 positive divisors.
There are 13265280 positive integers (up to 20921499) that are relatively prime to 20921499.
20921499 has 16 divisors, whose sum is 24408000
The reverse of 20921499 is 99412902
Previous prime number is 71
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty million nine hundred twenty-one thousand four hundred ninety-nine
Scientific notation
2.0921499 × 10^7
Engineering notation
2.0921499 × 10^6
Prime Factorization
29 × 9 × 71 × 1129
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20921499
Product of the distinct prime numbers
The prime factorization of 20921499 is 29 × 9 × 71 × 1129.
Since it has a total of 4 prime factors.
4 , 10 , 16 , 93 , 542 , 645 , 2360 , 7616 , 27555 , 11439 , 430626 , 429378 , 7474909 , 3825203 , 41431310 , 35467758 , 59992925 , 289389357 , 334523827 , 9039030316
n×2
41842998
n×3
62764497
n×4
83685996
n×5
104607495
n÷2
10460749.5
n÷3
6973833
n÷3
5230374.75
n÷5
4184299.8
n2
437709120407001
n3
9.157530924886E+21
n4
1.9158927408747E+29
n5
4.0083348062317E+36
2 √n
4574.0025142101
3 √n
275.54821329605
4 √n
67.631372263248
5 √n
29.115118335644
1 , 9 , 29 , 71 , 261 , 639 , 1129 , 2059 , 10161 , 18531 , 32741 , 80159 , 294669 , 721431 , 2324611 , 20921499
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20921498
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20921499 can be divided by 16 positive divisors.
The sum of these divisors (counting 20921499) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111110011110010011011
3
Ternary
1110100220220100
4
Quaternary
1033303302123
5
Quinary
20323441444
6
Senary
2024230443
8
Octal
117636233
10
Decimal
20921499
12
Duodecimal
700b423
16
Hexadecimal
13f3c9b
20
Vigesimal
6af3ej
36
Base36
cgf4r
md5
4ad3fe22f875e1e147aa26264a8c6569
sha1
8d79600ce5dbcd22f72546a7bcdd3a200d3fedce
sha256
184ac99f351240d22dfe36635ecbb24effd622fb1004396b6c15b2adabc0cb1d
sha512
e10d239f4fc45dd8aaccbb968659a5036851763d545c08eaa38b28c3602d815b5c2d7ea3690f4efe1e94f3dd2f348ecf42b782322a4460c197f11d3ebbf516bf
ripemd-160
979f71f716d01836f4ff9853b474b2b6644071ec
Diameter
41842998
Circumference
131453655.12097
Area
1.3751037570799E+15
Volume
3.8358975838191E+22
Surface area
5.5004150283195E+15
Circumference
131453655.12097
Perimeter
83685996
Area
437709120407001
Diagonal
29587467.630975
Surface area
2626254722442006
Volume
9.157530924886E+21
Space diagonal
36237099.238501
Perimeter
62764497
Area
1.895336088703E+14
Altitude
18118549.619251
Surface area
1.895336088703E+14
Volume
1.0792253693187E+21
Height
9862489.210325