21897415 is an odd 8-digits composite number following 21897414
and preceding 21897416 . In scientific notation, it is written as 2.1897415 × 10^7.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 17517928 positive integers (up to 21897415) that are relatively prime to 21897415.
21897415 has 4 divisors, whose sum is 26276904
The reverse of 21897415 is 51479812
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
twenty-one million eight hundred ninety-seven thousand four hundred fifteen
Scientific notation
2.1897415 × 10^7
Engineering notation
2.1897415 × 10^6
Prime Factorization
5 × 4379483
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21897415
Product of the distinct prime numbers
The prime factorization of 21897415 is 5 × 4379483.
Since it has a total of 2 prime factors.
1 , 3 , 20 , 38 , 222 , 468 , 5426 , 5442 , 80772 , 78059 , 799757 , 366526 , 8212795 , 1749028 , 1221959 , 79272304 , 886223888 , 862437592 , 2560289776 , 3508568160
n×2
43794830
n×3
65692245
n×4
87589660
n×5
109487075
n÷2
10948707.5
n÷3
7299138.3333333
n÷3
5474353.75
n÷5
4379483
n2
479496783682225
n3
1.0499740063455E+22
n4
2.299171655616E+29
n5
5.034591589926E+36
2 √n
4679.4673842223
3 √n
279.76772829255
4 √n
68.406632604027
5 √n
29.381811612323
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
-21897414
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 21897415 can be divided by 4 positive divisors.
The sum of these divisors (counting 21897415) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010011100010000011000111
3
Ternary
1112012111121101
4
Quaternary
1103202003013
5
Quinary
21101204130
6
Senary
2101200531
8
Octal
123420307
10
Decimal
21897415
12
Duodecimal
7400147
16
Hexadecimal
14e20c7
20
Vigesimal
6gh3af
36
Base36
d1c5j
md5
b7b494b6419887a73ab4928757207fd9
sha1
e247cf980ede5326aba411ba2b18063605decaff
sha256
762988896ecf9be89437d076552d49c43d691e1cc34e5e20561538f5a0791575
sha512
fa0dbdd964ede40aba2af4bb3065b42c4d0c0a8b938349c206ab2d64831e61bbc4c24a5413a83ca70a4c3d85a84b66dcd92aa6a57ab2288d20efb23127cd70dc
ripemd-160
45978b0c5fc5281b01ee0a48e80e9e752fefaa69
Diameter
43794830
Circumference
137585516.19321
Area
1.506383573036E+15
Volume
4.3981208330603E+22
Surface area
6.025534292144E+15
Circumference
137585516.19321
Perimeter
87589660
Area
479496783682225
Diagonal
30967621.273912
Surface area
2876980702093350
Volume
1.0499740063455E+22
Space diagonal
37927435.334421
Perimeter
65692245
Area
2.0762819785087E+14
Altitude
18963717.66721
Surface area
2.0762819785087E+14
Volume
1.2374062332608E+21
Height
10322540.424637