21493380 is an even 8-digits composite number following 21493379
and preceding 21493381 . In scientific notation, it is written as 2.1493380 × 10^7.
The sum of its digits is 30. It has a total of 4 prime factors and 12 positive divisors.
There are 5731552 positive integers (up to 21493380) that are relatively prime to 21493380.
21493380 has 12 divisors, whose sum is 40121088
The reverse of 21493380 is 08339412
Previous prime number is 15
Is Prime? no
Number parity even
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-one million four hundred ninety-three thousand three hundred eighty
Scientific notation
2.1493380 × 10^7
Engineering notation
2.1493380 × 10^6
Prime Factorization
2 × 2 × 15 × 358223
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10746690
Product of the distinct prime numbers
The prime factorization of 21493380 is 2 × 2 × 15 × 358223.
Since it has a total of 4 prime factors.
9 , 10 , 8 , 91 , 521 , 731 , 1682 , 7622 , 7210 , 68113 , 10345 , 146338 , 2252185 , 8009520 , 26760436 , 28751598 , 118107833 , 171880809 , 743743775 , 8760785585
n×2
42986760
n×3
64480140
n×4
85973520
n×5
107466900
n÷2
10746690
n÷3
7164460
n÷3
5373345
n÷5
4298676
n2
461965383824400
n3
9.9291975413837E+21
n4
2.1341201585203E+29
n5
4.5869455532736E+36
2 √n
4636.0953398307
3 √n
278.03634602337
4 √n
68.088878238892
5 √n
29.272576079352
1 , 2 , 4 , 15 , 30 , 60 , 358223 , 716446 , 1432892 , 5373345 , 10746690 , 21493380
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21493379
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21493380 can be divided by 12 positive divisors.
The sum of these divisors (counting 21493380) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010001111111011010000100
3
Ternary
1111102222101010
4
Quaternary
1101333122010
5
Quinary
21000242010
6
Senary
2044402220
8
Octal
121773204
10
Decimal
21493380
12
Duodecimal
7246370
16
Hexadecimal
147f684
20
Vigesimal
6e6d90
36
Base36
csoec
md5
ce3bbc1c3be5651dfab95c025390244c
sha1
57dd3e4b54e400bb8c3e1d8d91299ab9ec6c93d9
sha256
b03ae7de33bd2fa54010ff5e9e889cd7694339d2ce5fc80b2d4be54c77d9ab29
sha512
aa483aa49db1c28649704e47cc5c2f777ee1ee97990eeafe3130b0890579525b5bfd05e5eb434df363627d3c9c04d4a2ff9b64bee56b0900abdd7010671b49ac
ripemd-160
4f6a73d854cee730f6ca1a3055355f9e46197020
Diameter
42986760
Circumference
135046889.41763
Area
1.4513070560355E+15
Volume
4.1591325402737E+22
Surface area
5.8052282241421E+15
Circumference
135046889.41763
Perimeter
85973520
Area
461965383824400
Diagonal
30396229.497239
Surface area
2771792302946400
Volume
9.9291975413837E+21
Space diagonal
37227626.186385
Perimeter
64480140
Area
2.0003687903048E+14
Altitude
18613813.093192
Surface area
2.0003687903048E+14
Volume
1.1701671522089E+21
Height
10132076.49908