21031899 is an odd 8-digits composite number following 21031898
and preceding 21031900 . In scientific notation, it is written as 2.1031899 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 11910528 positive integers (up to 21031899) that are relatively prime to 21031899.
21031899 has 16 divisors, whose sum is 32335872
The reverse of 21031899 is 99813012
Previous prime number is 113
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-one million thirty-one thousand eight hundred ninety-nine
Scientific notation
2.1031899 × 10^7
Engineering notation
2.1031899 × 10^6
Prime Factorization
7 × 3 × 113 × 8863
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21031899
Product of the distinct prime numbers
The prime factorization of 21031899 is 7 × 3 × 113 × 8863.
Since it has a total of 4 prime factors.
3 , 1 , 38 , 80 , 593 , 702 , 9875 , 6219 , 30410 , 85405 , 425137 , 455694 , 2161446 , 338959 , 80169071 , 76020784 , 258808921 , 422996305 , 2212771146 , 2708969476
n×2
42063798
n×3
63095697
n×4
84127596
n×5
105159495
n÷2
10515949.5
n÷3
7010633
n÷3
5257974.75
n÷5
4206379.8
n2
442340775546201
n3
9.3032665148694E+21
n4
1.9566536171081E+29
n5
4.1152141253003E+36
2 √n
4586.054840492
3 √n
276.03204049372
4 √n
67.720416718239
5 √n
29.145781013032
1 , 3 , 7 , 21 , 113 , 339 , 791 , 2373 , 8863 , 26589 , 62041 , 186123 , 1001519 , 3004557 , 7010633 , 21031899
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
-21031898
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 21031899 can be divided by 16 positive divisors.
The sum of these divisors (counting 21031899) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000001110101111011011
3
Ternary
1110120112100020
4
Quaternary
1100032233123
5
Quinary
20341010044
6
Senary
2030441523
8
Octal
120165733
10
Decimal
21031899
12
Duodecimal
70632a3
16
Hexadecimal
140ebdb
20
Vigesimal
6b8jej
36
Base36
cisbf
md5
f100c01f861b8086939cdcd2d86d164e
sha1
ca9964b8d11ef3aed0d2cce4c8b7f90df7f67152
sha256
bea3ec22765db0301dec20d42939447d62a11b914e38e932fec41fa82a5aa5e9
sha512
5339edebe52ba796fc9192de0c5cecb0daeaf1b491f3f8ef1e0835d1547672d7a5175fadb97ec57c9d0d7e4902f82545e92dae8a34c6b2b24229cd1f32042328
ripemd-160
53c19a845aa20126dc7eb107129bc3ec3cf8f632
Diameter
42063798
Circumference
132147318.77889
Area
1.3896545308392E+15
Volume
3.8969431650002E+22
Surface area
5.5586181233566E+15
Circumference
132147318.77889
Perimeter
84127596
Area
442340775546201
Diagonal
29743596.808261
Surface area
2654044653277206
Volume
9.3032665148694E+21
Space diagonal
36428317.647657
Perimeter
63095697
Area
1.9153917437636E+14
Altitude
18214158.823829
Surface area
1.9153917437636E+14
Volume
1.0964004733083E+21
Height
9914532.2694204