21031903 is an odd 8-digits composite number following 21031902
and preceding 21031904 . In scientific notation, it is written as 2.1031903 × 10^7.
The sum of its digits is 19. It has a total of 2 prime factors and 4 positive divisors.
There are 20717928 positive integers (up to 21031903) that are relatively prime to 21031903.
21031903 has 4 divisors, whose sum is 21345880
The reverse of 21031903 is 30913012
Previous prime number is 67
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty-one million thirty-one thousand nine hundred three
Scientific notation
2.1031903 × 10^7
Engineering notation
2.1031903 × 10^6
Prime Factorization
67 × 313909
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21031903
Product of the distinct prime numbers
The prime factorization of 21031903 is 67 × 313909.
Since it has a total of 2 prime factors.
8 , 8 , 64 , 10 , 999 , 182 , 8014 , 2543 , 20370 , 92839 , 307075 , 51673 , 9878342 , 2718644 , 26199980 , 7458781 , 287012496 , 892878699 , 7963044549 , 6117414408
n×2
42063806
n×3
63095709
n×4
84127612
n×5
105159515
n÷2
10515951.5
n÷3
7010634.3333333
n÷3
5257975.75
n÷5
4206380.6
n2
442340943801409
n3
9.3032718229597E+21
n4
1.9566551056312E+29
n5
4.115218038609E+36
2 √n
4586.0552765967
3 √n
276.03205799298
4 √n
67.72041993813
5 √n
29.145782121663
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
-21031902
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 21031903 can be divided by 4 positive divisors.
The sum of these divisors (counting 21031903) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000001110101111011111
3
Ternary
1110120112100101
4
Quaternary
1100032233133
5
Quinary
20341010103
6
Senary
2030441531
8
Octal
120165737
10
Decimal
21031903
12
Duodecimal
70632a7
16
Hexadecimal
140ebdf
20
Vigesimal
6b8jf3
36
Base36
cisbj
md5
1a6782e33ce640b0fe1fbe73c1e4f9b8
sha1
e95088bd67e4516c6829d5f866a950f9b2eed5dc
sha256
da4038b206adfb7894402ebac33bdfe68a46d798bad4005baba4d9f22562a024
sha512
de4e5dbea80f252bd8c3b73486775b4af6c0b043733a0b9bba9921aecc3a96e8db8dffbe03d3304e92927f126368fe815432cf1f4288e15da3df3d938d3cf5be
ripemd-160
31c2899507822e60b31d8ee1b824b2e98ff6b06c
Diameter
42063806
Circumference
132147343.91163
Area
1.3896550594285E+15
Volume
3.8969453884479E+22
Surface area
5.5586202377139E+15
Circumference
132147343.91163
Perimeter
84127612
Area
442340943801409
Diagonal
29743602.465115
Surface area
2654045662808454
Volume
9.3032718229597E+21
Space diagonal
36428324.57586
Perimeter
63095709
Area
1.91539247233E+14
Altitude
18214162.28793
Surface area
1.91539247233E+14
Volume
1.0964010988728E+21
Height
9914534.1550385