21771385 is an odd 8-digits composite number following 21771384
and preceding 21771386 . In scientific notation, it is written as 2.1771385 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 17417104 positive integers (up to 21771385) that are relatively prime to 21771385.
21771385 has 4 divisors, whose sum is 26125668
The reverse of 21771385 is 58317712
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-one million seven hundred seventy-one thousand three hundred eighty-five
Scientific notation
2.1771385 × 10^7
Engineering notation
2.1771385 × 10^6
Prime Factorization
5 × 4354277
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21771385
Product of the distinct prime numbers
The prime factorization of 21771385 is 5 × 4354277.
Since it has a total of 2 prime factors.
7 , 7 , 68 , 61 , 388 , 408 , 4433 , 7769 , 10216 , 99565 , 903131 , 820129 , 3339517 , 2953457 , 98900427 , 30732628 , 308839829 , 783187407 , 9981501393 , 3044550809
n×2
43542770
n×3
65314155
n×4
87085540
n×5
108856925
n÷2
10885692.5
n÷3
7257128.3333333
n÷3
5442846.25
n÷5
4354277
n2
473993204818225
n3
1.0319488549481E+22
n4
2.2466955821385E+29
n5
4.8913674496537E+36
2 √n
4665.9816759177
3 √n
279.22996332121
4 √n
68.30799130349
5 √n
29.347912229587
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
-21771384
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 21771385 can be divided by 4 positive divisors.
The sum of these divisors (counting 21771385) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010011000011010001111001
3
Ternary
1111222002201121
4
Quaternary
1103003101321
5
Quinary
21033141020
6
Senary
2054345241
8
Octal
123032171
10
Decimal
21771385
12
Duodecimal
735b221
16
Hexadecimal
14c3479
20
Vigesimal
6g1895
36
Base36
cymwp
md5
60788502b52dcc07b6c1583847e5a035
sha1
5c3bd06dc2a2212bd73ea45cb25f6f465512bb8f
sha256
cb135189f10d9cb66174e27a3038ad622a47ec5d7d5e1c7c3c7c0665851350ed
sha512
a9f44cda197a0aab62852fbdbfba27ef489b6eb201b53fa72c384a686ee80bd24439c991f9e3317e26ff748f844f017fbfb3ac579ba93c15b49a0cad61f2be27
ripemd-160
77d8f8bc28ae6f8674f93c98cf4ca84f6fde5eda
Diameter
43542770
Circumference
136793646.34895
Area
1.4890935701084E+15
Volume
4.3226172554473E+22
Surface area
5.9563742804337E+15
Circumference
136793646.34895
Perimeter
87085540
Area
473993204818225
Diagonal
30789387.938646
Surface area
2843959228909350
Volume
1.0319488549481E+22
Space diagonal
37709144.971143
Perimeter
65314155
Area
2.0524507829689E+14
Altitude
18854572.485571
Surface area
2.0524507829689E+14
Volume
1.2161633886192E+21
Height
10263129.312882