21031847 is an odd 8-digits composite number following 21031846
and preceding 21031848 . In scientific notation, it is written as 2.1031847 × 10^7.
The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors.
There are 20797560 positive integers (up to 21031847) that are relatively prime to 21031847.
21031847 has 8 divisors, whose sum is 21267840
The reverse of 21031847 is 74813012
Previous prime number is 379
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty-one million thirty-one thousand eight hundred forty-seven
Scientific notation
2.1031847 × 10^7
Engineering notation
2.1031847 × 10^6
Prime Factorization
211 × 379 × 263
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21031847
Product of the distinct prime numbers
The prime factorization of 21031847 is 211 × 379 × 263.
Since it has a total of 3 prime factors.
3 , 1 , 66 , 21 , 10 , 802 , 602 , 1392 , 75726 , 15430 , 919826 , 194101 , 3316429 , 6429366 , 54934037 , 69502438 , 544847479 , 279510163 , 8922647703 , 6936495105
n×2
42063694
n×3
63095541
n×4
84127388
n×5
105159235
n÷2
10515923.5
n÷3
7010615.6666667
n÷3
5257961.75
n÷5
4206369.4
n2
442338588231409
n3
9.303197509879E+21
n4
1.9566342663856E+29
n5
4.1151632525578E+36
2 √n
4586.0491711276
3 √n
276.03181300312
4 √n
67.720374859621
5 √n
29.145766600808
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21031846
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21031847 can be divided by 8 positive divisors.
The sum of these divisors (counting 21031847) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000001110101110100111
3
Ternary
1110120112021022
4
Quaternary
1100032232213
5
Quinary
20341004342
6
Senary
2030441355
8
Octal
120165647
10
Decimal
21031847
12
Duodecimal
706325b
16
Hexadecimal
140eba7
20
Vigesimal
6b8jc7
36
Base36
cis9z
md5
d4d4db73aeaaaacb4def31175f13d818
sha1
aaa51ab587a8175c5eb49eb243ee5b044e590e62
sha256
089d889b4e87285ea8704153b61f3c6605c4aaa277f6d1e532a7764cc06e7d71
sha512
014e3fa79b9a050ded86a23ac4156d66a495ecb9a3f6cb3300db94f9f62d83815bd0a2bf7e017dad94fa637e671d9194dc73c3ede697dd9ad5170916d5ff6fdc
ripemd-160
3b275e1dbbd0f80eb9875863f7aeb8c0d8677f7a
Diameter
42063694
Circumference
132146992.05325
Area
1.3896476591871E+15
Volume
3.8969142602574E+22
Surface area
5.5585906367483E+15
Circumference
132146992.05325
Perimeter
84127388
Area
442338588231409
Diagonal
29743523.269156
Surface area
2654031529388454
Volume
9.303197509879E+21
Space diagonal
36428227.581015
Perimeter
63095541
Area
1.9153822724127E+14
Altitude
18214113.790508
Surface area
1.9153822724127E+14
Volume
1.0963923409922E+21
Height
9914507.7563853