21771381 is an odd 8-digits composite number following 21771380
and preceding 21771382 . In scientific notation, it is written as 2.1771381 × 10^7.
The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors.
There are 14514252 positive integers (up to 21771381) that are relatively prime to 21771381.
21771381 has 4 divisors, whose sum is 29028512
The reverse of 21771381 is 18317712
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-one million seven hundred seventy-one thousand three hundred eighty-one
Scientific notation
2.1771381 × 10^7
Engineering notation
2.1771381 × 10^6
Prime Factorization
3 × 7257127
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21771381
Product of the distinct prime numbers
The prime factorization of 21771381 is 3 × 7257127.
Since it has a total of 2 prime factors.
6 , 2 , 82 , 69 , 709 , 385 , 5236 , 6394 , 22940 , 19683 , 43162 , 916610 , 8097274 , 6429004 , 91773101 , 76541115 , 224546697 , 309585134 , 4290891736 , 2328510404
n×2
43542762
n×3
65314143
n×4
87085524
n×5
108856905
n÷2
10885690.5
n÷3
7257127
n÷3
5442845.25
n÷5
4354276.2
n2
473993030647161
n3
1.0319482861564E+22
n4
2.2466939310208E+29
n5
4.8913629562642E+36
2 √n
4665.9812472834
3 √n
279.22994622048
4 √n
68.307988165978
5 √n
29.347911151183
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
-21771380
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 21771381 can be divided by 4 positive divisors.
The sum of these divisors (counting 21771381) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010011000011010001110101
3
Ternary
1111222002201110
4
Quaternary
1103003101311
5
Quinary
21033141011
6
Senary
2054345233
8
Octal
123032165
10
Decimal
21771381
12
Duodecimal
735b219
16
Hexadecimal
14c3475
20
Vigesimal
6g1891
36
Base36
cymwl
md5
183b7c5cf0df3a7c97918ea691814fea
sha1
aaa60fad96fd7bce935723732b698e21024986f0
sha256
63b268073a3df74e1d7b2208359d412c7876e75a41b5ff99dee0f51c8f85e82e
sha512
aeb9d0db2f0219b7eea1b7d2414775f1343735465b250319a92ba050795c33fefdaaf88d875d48f4abe985f7c51ddd1b310e04334b4cfa45c9f7e9d82ce7c05b
ripemd-160
ec25db8a14e8be6dbb9b2c5ee734aaa5a565ca1a
Diameter
43542762
Circumference
136793621.21621
Area
1.4890930229339E+15
Volume
4.322614872898E+22
Surface area
5.9563720917355E+15
Circumference
136793621.21621
Perimeter
87085524
Area
473993030647161
Diagonal
30789382.281792
Surface area
2843958183882966
Volume
1.0319482861564E+22
Space diagonal
37709138.04294
Perimeter
65314143
Area
2.0524500287861E+14
Altitude
18854569.02147
Surface area
2.0524500287861E+14
Volume
1.2161627182917E+21
Height
10263127.427264