21932987 is an odd 8-digits composite number following 21932986
and preceding 21932988 . In scientific notation, it is written as 2.1932987 × 10^7.
The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors.
There are 21876216 positive integers (up to 21932987) that are relatively prime to 21932987.
21932987 has 4 divisors, whose sum is 21989760
The reverse of 21932987 is 78923912
Previous prime number is 389
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
twenty-one million nine hundred thirty-two thousand nine hundred eighty-seven
Scientific notation
2.1932987 × 10^7
Engineering notation
2.1932987 × 10^6
Prime Factorization
389 × 56383
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21932987
Product of the distinct prime numbers
The prime factorization of 21932987 is 389 × 56383.
Since it has a total of 2 prime factors.
1 , 9 , 85 , 82 , 513 , 988 , 3088 , 2798 , 33462 , 75922 , 680249 , 634487 , 6373247 , 5111850 , 1059155 , 5935910 , 231858134 , 598888341 , 9082945593 , 2599220550
n×2
43865974
n×3
65798961
n×4
87731948
n×5
109664935
n÷2
10966493.5
n÷3
7310995.6666667
n÷3
5483246.75
n÷5
4386597.4
n2
481055918742169
n3
1.0550993212045E+22
n4
2.3141479695687E+29
n5
5.0756177332627E+36
2 √n
4683.2667017799
3 √n
279.91913906546
4 √n
68.434397065948
5 √n
29.391351471883
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21932986
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21932987 can be divided by 4 positive divisors.
The sum of these divisors (counting 21932987) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010011101010101110111011
3
Ternary
1112021022101212
4
Quaternary
1103222232323
5
Quinary
21103323422
6
Senary
2102033335
8
Octal
123525673
10
Decimal
21932987
12
Duodecimal
741884b
16
Hexadecimal
14eabbb
20
Vigesimal
6h1c97
36
Base36
d23ln
md5
edfdb3000273d1c34af4d892f20507dc
sha1
65cb2de7f2568c5b6942bac9381d61418299c115
sha256
a656cfc60667d65dc5b214edad6139f62b236b3dd995e7b6b4437cac25b69d1a
sha512
87789920e57fd9e4b6680886980d89910daa96151334fe45f63e34c350ae3cac144bbe2431df00f2c8df80be655ed61214000d900de42620e72477dd61875849
ripemd-160
74cc45bb86cf07e53d19375b0347f905064a6196
Diameter
43865974
Circumference
137809021.66096
Area
1.5112817402863E+15
Volume
4.4195897017382E+22
Surface area
6.0451269611451E+15
Circumference
137809021.66096
Perimeter
87731948
Area
481055918742169
Diagonal
31017927.678753
Surface area
2886335512453014
Volume
1.0550993212045E+22
Space diagonal
37989047.845748
Perimeter
65798961
Area
2.0830332313579E+14
Altitude
18994523.922874
Surface area
2.0830332313579E+14
Volume
1.2434464747484E+21
Height
10339309.226251