21490893 is an odd 8-digits composite number following 21490892
and preceding 21490894 . In scientific notation, it is written as 2.1490893 × 10^7.
The sum of its digits is 36. It has a total of 3 prime factors and 8 positive divisors.
There are 14275872 positive integers (up to 21490893) that are relatively prime to 21490893.
21490893 has 8 divisors, whose sum is 22366848
The reverse of 21490893 is 39809412
Previous prime number is 313
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
twenty-one million four hundred ninety thousand eight hundred ninety-three
Scientific notation
2.1490893 × 10^7
Engineering notation
2.1490893 × 10^6
Prime Factorization
27 × 313 × 2543
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21490893
Product of the distinct prime numbers
The prime factorization of 21490893 is 27 × 313 × 2543.
Since it has a total of 3 prime factors.
5 , 7 , 88 , 39 , 389 , 294 , 8135 , 4155 , 4174 , 17751 , 811660 , 580750 , 6501722 , 7172180 , 914015 , 79708183 , 9323557 , 740399924 , 8021297022 , 3851734571
n×2
42981786
n×3
64472679
n×4
85963572
n×5
107454465
n÷2
10745446.5
n÷3
7163631
n÷3
5372723.25
n÷5
4298178.6
n2
461858481937449
n3
9.9257512164602E+21
n4
2.1331325733756E+29
n5
4.5842923889231E+36
2 √n
4635.8271106675
3 √n
278.02562174354
4 √n
68.086908511604
5 √n
29.271898621768
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21490892
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21490893 can be divided by 8 positive divisors.
The sum of these divisors (counting 21490893) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001111110110011001101
3
Ternary
1111102211222000
4
Quaternary
1101332303031
5
Quinary
21000202033
6
Senary
2044342513
8
Octal
121766315
10
Decimal
21490893
12
Duodecimal
7244a39
16
Hexadecimal
147eccd
20
Vigesimal
6e674d
36
Base36
csmh9
md5
9fccc6c5c833944ff5136697cb041b9a
sha1
282eaaf822508ecba1c8e8fdbea3bb2b9876ca14
sha256
f271a5e037471bb51e7363c0c0369c34bf6756ffe9becd6bfadcf3c88a04f10a
sha512
8e49241e9f73403fb1213029a19690f59ca51253d63d74893534da7997172efa22dbdc446bf3566a5a1e9c6b4f6fec6b7e765e83456ca267a130ac66a062d2cd
ripemd-160
fa45741eef1942b2681f3c6f573f4f46177a5a0d
Diameter
42981786
Circumference
135031263.13577
Area
1.4509712138528E+15
Volume
4.1576889470655E+22
Surface area
5.8038848554113E+15
Circumference
135031263.13577
Perimeter
85963572
Area
461858481937449
Diagonal
30392712.348109
Surface area
2771150891624694
Volume
9.9257512164602E+21
Space diagonal
37223318.576026
Perimeter
64472679
Area
1.9999058915557E+14
Altitude
18611659.288013
Surface area
1.9999058915557E+14
Volume
1.1697609989216E+21
Height
10130904.116036