18908897 is an odd 8-digits composite number following 18908896
and preceding 18908898 . In scientific notation, it is written as 1.8908897 × 10^7.
The sum of its digits is 50. It has a total of 2 prime factors and 4 positive divisors.
There are 16207620 positive integers (up to 18908897) that are relatively prime to 18908897.
18908897 has 4 divisors, whose sum is 21610176
The reverse of 18908897 is 79880981
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 50
Digital Root 5
Name
eighteen million nine hundred eight thousand eight hundred ninety-seven
Scientific notation
1.8908897 × 10^7
Engineering notation
1.8908897 × 10^6
Prime Factorization
7 × 2701271
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18908897
Product of the distinct prime numbers
The prime factorization of 18908897 is 7 × 2701271.
Since it has a total of 2 prime factors.
2 , 4 , 42 , 60 , 885 , 883 , 8950 , 3189 , 5372 , 57311 , 53132 , 793831 , 4471460 , 6626274 , 16118062 , 95596988 , 267213959 , 652210513 , 9566635808 , 8092377562
n×2
37817794
n×3
56726691
n×4
75635588
n×5
94544485
n÷2
9454448.5
n÷3
6302965.6666667
n÷3
4727224.25
n÷5
3781779.4
n2
357546385756609
n3
6.760807780994E+21
n4
1.2783941796761E+29
n5
2.4173023868896E+36
2 √n
4348.4361556771
3 √n
266.41299122469
4 √n
65.942673252433
5 √n
28.532067266712
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
-18908896
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 18908897 can be divided by 4 positive divisors.
The sum of these divisors (counting 18908897) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001000001000011011100001
3
Ternary
1022120200010112
4
Quaternary
1020020123201
5
Quinary
14320041042
6
Senary
1513141105
8
Octal
110103341
10
Decimal
18908897
12
Duodecimal
63ba795
16
Hexadecimal
12086e1
20
Vigesimal
5i3c4h
36
Base36
b9a75
md5
19f8b08deb28ed1cbf9f4ed2bf132960
sha1
358112a0e5afb7bd9fbd9c84801bd4bb70748c49
sha256
4587704775f686f3dabec08a6b30328433796382f3e53a475113e00eddde3dde
sha512
afdf200aa7d2401082cf758470fdaade3fd4ad25b5af97d0fb5221285aa4a9c800f63e2c5484fe191551a3e9ae5f94629cc33366e859e4dd727700b12f916f3a
ripemd-160
f499d6c05440b1e2f1687a18094b08e903f02498
Diameter
37817794
Circumference
118808103.80537
Area
1.1232650988105E+15
Volume
2.8319605409471E+22
Surface area
4.4930603952422E+15
Circumference
118808103.80537
Perimeter
75635588
Area
357546385756609
Diagonal
26741218.586916
Surface area
2145278314539654
Volume
6.760807780994E+21
Space diagonal
32751170.319087
Perimeter
56726691
Area
1.5482212654827E+14
Altitude
16375585.159543
Surface area
1.5482212654827E+14
Volume
7.9676883803994E+20
Height
8913739.528972