21132845 is an odd 8-digits composite number following 21132844
and preceding 21132846 . In scientific notation, it is written as 2.1132845 × 10^7.
The sum of its digits is 26. It has a total of 4 prime factors and 16 positive divisors.
There are 15672384 positive integers (up to 21132845) that are relatively prime to 21132845.
21132845 has 16 divisors, whose sum is 27267840
The reverse of 21132845 is 54823112
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty-one million one hundred thirty-two thousand eight hundred forty-five
Scientific notation
2.1132845 × 10^7
Engineering notation
2.1132845 × 10^6
Prime Factorization
5 × 19 × 47 × 4733
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21132845
Product of the distinct prime numbers
The prime factorization of 21132845 is 5 × 19 × 47 × 4733.
Since it has a total of 4 prime factors.
7 , 1 , 15 , 95 , 374 , 649 , 6974 , 9933 , 72995 , 22024 , 125767 , 651080 , 494797 , 3682325 , 43928499 , 91222670 , 434115014 , 281861351 , 3680560933 , 6982607750
n×2
42265690
n×3
63398535
n×4
84531380
n×5
105664225
n÷2
10566422.5
n÷3
7044281.6666667
n÷3
5283211.25
n÷5
4226569
n2
446597137794025
n3
9.4378680904448E+21
n4
1.9944900348582E+29
n5
4.2149248760702E+36
2 √n
4597.0474219873
3 √n
276.47295596637
4 √n
67.801529643418
5 √n
29.173705431007
1 , 5 , 19 , 47 , 95 , 235 , 893 , 4465 , 4733 , 23665 , 89927 , 222451 , 449635 , 1112255 , 4226569 , 21132845
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
-21132844
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 21132845 can be divided by 16 positive divisors.
The sum of these divisors (counting 21132845) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000100111011000101101
3
Ternary
1110202122210222
4
Quaternary
1100213120231
5
Quinary
20402222340
6
Senary
2032541125
8
Octal
120473055
10
Decimal
21132845
12
Duodecimal
70b17a5
16
Hexadecimal
142762d
20
Vigesimal
6c1c25
36
Base36
cky7h
md5
399360c83a9fc369f9ef66944fce3766
sha1
605515f31e45bdf2ea0f6da814b519c6defcf83f
sha256
8e0e2cab73afabeaf30b2afffdfbd69855238d1fe20cee1ac7eef9fbc5a7c894
sha512
38ac5a957df9c51a4072c84fc6f950c723a0e450f68f80616b3ce69efdb8c140aa7c2446fe44f0af5d3151d83e80d2c57c99e94c4f36e63567d6f49c33319078
ripemd-160
7c68a1eae6721a1c9e94170d0f8e3c0238b558d7
Diameter
42265690
Circumference
132781581.2029
Area
1.4030262872079E+15
Volume
3.9533249411321E+22
Surface area
5.6121051488318E+15
Circumference
132781581.2029
Perimeter
84531380
Area
446597137794025
Diagonal
29886356.010528
Surface area
2679582826764150
Volume
9.4378680904448E+21
Space diagonal
36603161.248478
Perimeter
63398535
Area
1.9338223329352E+14
Altitude
18301580.624239
Surface area
1.9338223329352E+14
Volume
1.1122634211163E+21
Height
9962118.6701762