21031875 is an odd 8-digits composite number following 21031874
and preceding 21031876 . In scientific notation, it is written as 2.1031875 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors.
There are 11214000 positive integers (up to 21031875) that are relatively prime to 21031875.
21031875 has 16 divisors, whose sum is 30159360
The reverse of 21031875 is 57813012
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty-one million thirty-one thousand eight hundred seventy-five
Scientific notation
2.1031875 × 10^7
Engineering notation
2.1031875 × 10^6
Prime Factorization
15 × 125 × 3 × 3739
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21031875
Product of the distinct prime numbers
The prime factorization of 21031875 is 15 × 125 × 3 × 3739.
Since it has a total of 4 prime factors.
10 , 2 , 58 , 45 , 48 , 288 , 4873 , 6566 , 50499 , 69548 , 569732 , 690300 , 6406549 , 4662931 , 20068569 , 11778137 , 933802901 , 336795902 , 2209451303 , 8446669308
n×2
42063750
n×3
63095625
n×4
84127500
n×5
105159375
n÷2
10515937.5
n÷3
7010625
n÷3
5257968.75
n÷5
4206375
n2
442339766015625
n3
9.3032346663699E+21
n4
1.9566446859876E+29
n5
4.1151906455105E+36
2 √n
4586.0522238631
3 √n
276.0319354981
4 √n
67.720397398887
5 √n
29.14577436124
1 , 3 , 15 , 45 , 125 , 375 , 1875 , 3739 , 5625 , 11217 , 56085 , 168255 , 467375 , 1402125 , 7010625 , 21031875
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
-21031874
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 21031875 can be divided by 16 positive divisors.
The sum of these divisors (counting 21031875) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000001110101111000011
3
Ternary
1110120112022100
4
Quaternary
1100032233003
5
Quinary
20341010000
6
Senary
2030441443
8
Octal
120165703
10
Decimal
21031875
12
Duodecimal
7063283
16
Hexadecimal
140ebc3
20
Vigesimal
6b8jdf
36
Base36
cisar
md5
45d102d01dc7cb13cb54d8d5561e0b72
sha1
e32357fe804fb02fd397be3eff07aeccd63576b1
sha256
4b5be265d372c5c5d2694481a1f4abf83d5a7ce9c6642b86ef0cb13dd09dee61
sha512
9079772babee99b79d4e460051f622a3569c62c5baf0ef71749551af4fe3d07a087ee2f8b9ee0701f85590acaf8d5577e69a64bc6974a97715bd0d067d425f46
ripemd-160
6d67d1ed29cb6d59fc1b6b06b67c5a6428713faa
Diameter
42063750
Circumference
132147167.98244
Area
1.3896513593053E+15
Volume
3.8969298243319E+22
Surface area
5.5586054372213E+15
Circumference
132147167.98244
Perimeter
84127500
Area
442339766015625
Diagonal
29743562.867136
Surface area
2654038596093750
Volume
9.3032346663699E+21
Space diagonal
36428276.078438
Perimeter
63095625
Area
1.915387372368E+14
Altitude
18214138.039219
Surface area
1.915387372368E+14
Volume
1.0963967199267E+21
Height
9914520.9557119