21031999 is an odd 8-digits composite number following 21031998
and preceding 21032000 . In scientific notation, it is written as 2.1031999 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 20965336 positive integers (up to 21031999) that are relatively prime to 21031999.
21031999 has 4 divisors, whose sum is 21098664
The reverse of 21031999 is 99913012
Previous prime number is 317
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-one million thirty-one thousand nine hundred ninety-nine
Scientific notation
2.1031999 × 10^7
Engineering notation
2.1031999 × 10^6
Prime Factorization
317 × 66347
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21031999
Product of the distinct prime numbers
The prime factorization of 21031999 is 317 × 66347.
Since it has a total of 2 prime factors.
5 , 10 , 39 , 92 , 131 , 111 , 810 , 6482 , 57983 , 72023 , 201490 , 413266 , 9223407 , 9036868 , 64409300 , 84995946 , 309397265 , 643963589 , 735889406 , 7645652056
n×2
42063998
n×3
63095997
n×4
84127996
n×5
105159995
n÷2
10515999.5
n÷3
7010666.3333333
n÷3
5257999.75
n÷5
4206399.8
n2
442344981936001
n3
9.303399217733E+21
n4
1.9566908304396E+29
n5
4.1153119589115E+36
2 √n
4586.0657430961
3 √n
276.03247797458
4 √n
67.720497215364
5 √n
29.145808728765
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
-21031998
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 21031999 can be divided by 4 positive divisors.
The sum of these divisors (counting 21031999) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000001110110000111111
3
Ternary
1110120112110221
4
Quaternary
1100032300333
5
Quinary
20341010444
6
Senary
2030442211
8
Octal
120166077
10
Decimal
21031999
12
Duodecimal
7063367
16
Hexadecimal
140ec3f
20
Vigesimal
6b8jjj
36
Base36
cise7
md5
c3725bde386e9fa2b4498699df403986
sha1
ba2b20ddfe471ee77b01df536ddda1a972a80bde
sha256
3143a2fd7f61ec260dfb4c27161786c02726c7dfa6da6ed0a7c22c3a8cba83c1
sha512
ee365681c24aeab675c033056b42bc5df6de2726fa50d40bab3d8d6e4d462ac6df9acac909ae8ecb893a53cb4d45748412beb44b67fcfa56c6259b01cc1bf029
ripemd-160
e3615ff13667ff3140cea0f08faedfd8742a9b77
Diameter
42063998
Circumference
132147947.09742
Area
1.3896677456025E+15
Volume
3.8969987514457E+22
Surface area
5.5586709824098E+15
Circumference
132147947.09742
Perimeter
84127996
Area
442344981936001
Diagonal
29743738.229617
Surface area
2654069891616006
Volume
9.303399217733E+21
Space diagonal
36428490.852738
Perimeter
63095997
Area
1.9154099579657E+14
Altitude
18214245.426369
Surface area
1.9154099579657E+14
Volume
1.0964161124908E+21
Height
9914579.4098725