21281277 is an odd 8-digits composite number following 21281276
and preceding 21281278 . In scientific notation, it is written as 2.1281277 × 10^7.
The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors.
There are 13885872 positive integers (up to 21281277) that are relatively prime to 21281277.
21281277 has 16 divisors, whose sum is 28984320
The reverse of 21281277 is 77218212
Previous prime number is 67
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-one million two hundred eighty-one thousand two hundred seventy-seven
Scientific notation
2.1281277 × 10^7
Engineering notation
2.1281277 × 10^6
Prime Factorization
3 × 239 × 67 × 443
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21281277
Product of the distinct prime numbers
The prime factorization of 21281277 is 3 × 239 × 67 × 443.
Since it has a total of 4 prime factors.
5 , 2 , 91 , 27 , 833 , 128 , 2920 , 7015 , 89886 , 52040 , 880193 , 875993 , 240346 , 7661319 , 59865705 , 60356082 , 90017863 , 949651980 , 3341857889 , 576103616
n×2
42562554
n×3
63843831
n×4
85125108
n×5
106406385
n÷2
10640638.5
n÷3
7093759
n÷3
5320319.25
n÷5
4256255.4
n2
452892750750729
n3
9.6381360800182E+21
n4
2.0511184368256E+29
n5
4.3650419613893E+36
2 √n
4613.1634482208
3 √n
277.11873946837
4 √n
67.920272733704
5 √n
29.214572587698
1 , 3 , 67 , 201 , 239 , 443 , 717 , 1329 , 16013 , 29681 , 48039 , 89043 , 105877 , 317631 , 7093759 , 21281277
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
-21281276
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 21281277 can be divided by 16 positive divisors.
The sum of these divisors (counting 21281277) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010001001011100111111101
3
Ternary
1111001012102110
4
Quaternary
1101023213331
5
Quinary
20422000102
6
Senary
2040044233
8
Octal
121134775
10
Decimal
21281277
12
Duodecimal
7163679
16
Hexadecimal
144b9fd
20
Vigesimal
6d033h
36
Base36
co4ql
md5
96e3b7cf094ea59a05cfc6c933247ead
sha1
2b268103c0c8fedb916a7327b26fdff717c8f11b
sha256
2bfd0aa44e65554568bbc3880fa9b3359fb8eaa72ca3be5665f8aea41ccc3b6c
sha512
2da9c47611585328a6b8858e649ccf43c9489797822ee7edfd974c489f5e89a8d8da2b6d4fe87c0738a53b53e58e0e97cf1c072d47b545b253a723bc4bb4bb24
ripemd-160
3c938afc7b9bd1caeab826f2609938612f9efd49
Diameter
42562554
Circumference
133714206.96442
Area
1.4228045386226E+15
Volume
4.0372130004379E+22
Surface area
5.6912181544903E+15
Circumference
133714206.96442
Perimeter
85125108
Area
452892750750729
Diagonal
30096270.558019
Surface area
2717356504504374
Volume
9.6381360800182E+21
Space diagonal
36860253.013947
Perimeter
63843831
Area
1.9610831366997E+14
Altitude
18430126.506973
Surface area
1.9610831366997E+14
Volume
1.1358652300299E+21
Height
10032090.186006