21031880 is an even 8-digits composite number following 21031879
and preceding 21031881 . In scientific notation, it is written as 2.1031880 × 10^7.
The sum of its digits is 23. It has a total of 6 prime factors and 32 positive divisors.
There are 8388096 positive integers (up to 21031880) that are relatively prime to 21031880.
21031880 has 32 divisors, whose sum is 47460600
The reverse of 21031880 is 08813012
Previous prime number is 509
Is Prime? no
Number parity even
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty-one million thirty-one thousand eight hundred eighty
Scientific notation
2.1031880 × 10^7
Engineering notation
2.1031880 × 10^6
Prime Factorization
2 × 2 × 2 × 5 × 509 × 1033
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
5257970
Product of the distinct prime numbers
The prime factorization of 21031880 is 2 × 2 × 2 × 5 × 509 × 1033.
Since it has a total of 6 prime factors.
5 , 4 , 18 , 47 , 699 , 647 , 3275 , 4831 , 19584 , 64467 , 74182 , 542784 , 6077686 , 1088899 , 83652609 , 49015610 , 605723021 , 190551126 , 6841036018 , 634561789
n×2
42063760
n×3
63095640
n×4
84127520
n×5
105159400
n÷2
10515940
n÷3
7010626.6666667
n÷3
5257970
n÷5
4206376
n2
442339976334400
n3
9.3032413014679E+21
n4
1.9566465466352E+29
n5
4.1151955371245E+36
2 √n
4586.0527689943
3 √n
276.03195737219
4 √n
67.720401423753
5 √n
29.14577574703
1 , 2 , 4 , 5 , 8 , 10 , 20 , 40 , 509 , 1018 , 1033 , 2036 , 2066 , 2545 , 4072 , 4132 , 5090 , 5165 , 8264 , 10180 , 10330 , 20360 , 20660 , 41320 , 525797 , 1051594 , 2103188 , 2628985 , 4206376 , 5257970 , 10515940 , 21031880
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21031879
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21031880 can be divided by 32 positive divisors.
The sum of these divisors (counting 21031880) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1010000001110101111001000
3
Ternary
1110120112022112
4
Quaternary
1100032233020
5
Quinary
20341010010
6
Senary
2030441452
8
Octal
120165710
10
Decimal
21031880
12
Duodecimal
7063288
16
Hexadecimal
140ebc8
20
Vigesimal
6b8je0
36
Base36
cisaw
md5
8441c23632de63f09447d5259b402d94
sha1
efa0af64e54a6b139679f93bdb717c17385782b9
sha256
01a07a92d353f166edd51fd8e174b959c84e24471692238949c73268fdabac85
sha512
cd032399b7946f748d4a1331db608929d99d52fe3862d83103c0d2d49e4118280216bd7c65c930cbb124abe0bd4235e31b4c97572769a5f67c65f58681023a4f
ripemd-160
59baddef630581020c670f2323cddc8924ab8e33
Diameter
42063760
Circumference
132147199.39836
Area
1.3896520200412E+15
Volume
3.8969326036353E+22
Surface area
5.5586080801649E+15
Circumference
132147199.39836
Perimeter
84127520
Area
442339976334400
Diagonal
29743569.938203
Surface area
2654039858006400
Volume
9.3032413014679E+21
Space diagonal
36428284.738692
Perimeter
63095640
Area
1.915388283075E+14
Altitude
18214142.369346
Surface area
1.915388283075E+14
Volume
1.0963975018805E+21
Height
9914523.3127345