21031889 is an odd 8-digits composite number following 21031888
and preceding 21031890 . In scientific notation, it is written as 2.1031889 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 6 positive divisors.
There are 20582240 positive integers (up to 21031889) that are relatively prime to 21031889.
21031889 has 6 divisors, whose sum is 21491154
The reverse of 21031889 is 98813012
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million thirty-one thousand eight hundred eighty-nine
Scientific notation
2.1031889 × 10^7
Engineering notation
2.1031889 × 10^6
Prime Factorization
47 × 47 × 9521
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
447487
Product of the distinct prime numbers
The prime factorization of 21031889 is 47 × 47 × 9521.
Since it has a total of 3 prime factors.
4 , 2 , 29 , 13 , 849 , 217 , 6773 , 2777 , 46152 , 79903 , 475412 , 312419 , 9453588 , 5223026 , 81542465 , 58461690 , 426822576 , 858591771 , 6392612618 , 6077007889
n×2
42063778
n×3
63095667
n×4
84127556
n×5
105159445
n÷2
10515944.5
n÷3
7010629.6666667
n÷3
5257972.25
n÷5
4206377.8
n2
442340354908321
n3
9.3032532446524E+21
n4
1.9566498958042E+29
n5
4.1152043420415E+36
2 √n
4586.0537502301
3 √n
276.03199674555
4 √n
67.720408668511
5 √n
29.145778241452
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21031888
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21031889 can be divided by 6 positive divisors.
The sum of these divisors (counting 21031889) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1010000001110101111010001
3
Ternary
1110120112022212
4
Quaternary
1100032233101
5
Quinary
20341010024
6
Senary
2030441505
8
Octal
120165721
10
Decimal
21031889
12
Duodecimal
7063295
16
Hexadecimal
140ebd1
20
Vigesimal
6b8je9
36
Base36
cisb5
md5
d97b8fbbf31b96fc58b4b6577e2b4374
sha1
f2e4675f7f6509dc001c2bc3fd21b655316551b0
sha256
fca56dcc037a5a9e92ba34b7a2df7b0598dc1f1999d9f4c62fdfe61b3d50a209
sha512
2b1faaa7136a5e93a3a1406f4211498fb12559f502ce66703f86ec7ab99e370ddea8afa7026cdb6b6fc0173ee38e9260f6726054aa849dd769f89aa1f0519102
ripemd-160
75944a69f8de08007649b228b030e80dba5fd730
Diameter
42063778
Circumference
132147255.94703
Area
1.3896532093663E+15
Volume
3.8969376063847E+22
Surface area
5.5586128374651E+15
Circumference
132147255.94703
Perimeter
84127556
Area
442340354908321
Diagonal
29743582.666126
Surface area
2654042129449926
Volume
9.3032532446524E+21
Space diagonal
36428300.327149
Perimeter
63095667
Area
1.9153899223482E+14
Altitude
18214150.163574
Surface area
1.9153899223482E+14
Volume
1.0963989093982E+21
Height
9914527.5553752