18981317 is an odd 8-digits composite number following 18981316
and preceding 18981318 . In scientific notation, it is written as 1.8981317 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 18964140 positive integers (up to 18981317) that are relatively prime to 18981317.
18981317 has 4 divisors, whose sum is 18998496
The reverse of 18981317 is 71318981
Previous prime number is 1187
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
eighteen million nine hundred eighty-one thousand three hundred seventeen
Scientific notation
1.8981317 × 10^7
Engineering notation
1.8981317 × 10^6
Prime Factorization
1187 × 15991
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18981317
Product of the distinct prime numbers
The prime factorization of 18981317 is 1187 × 15991.
Since it has a total of 2 prime factors.
3 , 9 , 26 , 82 , 541 , 96 , 7756 , 2812 , 96819 , 28920 , 241034 , 859641 , 739954 , 1259298 , 65901476 , 55514119 , 582191198 , 196823866 , 9133161757 , 1057723455
n×2
37962634
n×3
56943951
n×4
75925268
n×5
94906585
n÷2
9490658.5
n÷3
6327105.6666667
n÷3
4745329.25
n÷5
3796263.4
n2
360290395054489
n3
6.8387862005845E+21
n4
1.2980916876852E+29
n5
2.4639489819018E+36
2 √n
4356.7553293707
3 √n
266.75267347291
4 √n
66.005721944167
5 √n
28.553889100671
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
-18981316
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 18981317 can be divided by 4 positive divisors.
The sum of these divisors (counting 18981317) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001000011010000111000101
3
Ternary
1022201100110202
4
Quaternary
1020122013011
5
Quinary
14324400232
6
Senary
1514500245
8
Octal
110320705
10
Decimal
18981317
12
Duodecimal
6434685
16
Hexadecimal
121a1c5
20
Vigesimal
5icd5h
36
Base36
bau2t
md5
cc6b1d1235e78062d2ff6feb8b828320
sha1
95053f69253f8b3fef20a8bc6aab9e95b6b54ee7
sha256
9a07c800d84db54494d27bf373ef5f896495538f434e08c02af436fb3e40e154
sha512
eeeb81d7bf13e21d813900502419650d726bd1464adbad54edb5e52d807666a540180ef3fd20d448261fed6192a94fcb165227ab87ba87d6dee7cb749049ed9b
ripemd-160
da0895bfbc1025cf758464648dc962b290ce3b4f
Diameter
37962634
Circumference
119263132.08532
Area
1.1318856582621E+15
Volume
2.8646240649637E+22
Surface area
4.5275426330486E+15
Circumference
119263132.08532
Perimeter
75925268
Area
360290395054489
Diagonal
26843635.933103
Surface area
2161742370326934
Volume
6.8387862005845E+21
Space diagonal
32876605.438571
Perimeter
56943951
Area
1.5601031742836E+14
Altitude
16438302.719285
Surface area
1.5601031742836E+14
Volume
8.0595868291971E+20
Height
8947878.6443677