18984881 is an odd 8-digits prime number following 18984880
and preceding 18984882 . In scientific notation, it is written as 1.8984881 × 10^7.
The sum of its digits is 47. It has a total of 1 prime factors and 2 positive divisors.
There are 18984880 positive integers (up to 18984881) that are relatively prime to 18984881.
18984881 has 2 divisors, whose sum is 18984882
The reverse of 18984881 is 18848981
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
eighteen million nine hundred eighty-four thousand eight hundred eighty-one
Scientific notation
1.8984881 × 10^7
Engineering notation
1.8984881 × 10^6
Prime Factorization
18984881
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
18984881
Product of the distinct prime numbers
The prime factorization of 18984881 is 18984881.
Since it has a total of 1 prime factors.
8 , 7 , 45 , 36 , 368 , 977 , 4744 , 7352 , 81037 , 9021 , 309677 , 87864 , 1905630 , 1246689 , 67761815 , 64798278 , 772067211 , 450151401 , 7948530295 , 10805262
n×2
37969762
n×3
56954643
n×4
75939524
n×5
94924405
n÷2
9492440.5
n÷3
6328293.6666667
n÷3
4746220.25
n÷5
3796976.2
n2
360425706584161
n3
6.8426391488412E+21
n4
1.2990668996669E+29
n5
2.4662630501215E+36
2 √n
4357.1643301579
3 √n
266.76936790691
4 √n
66.008820093665
5 √n
28.554961296224
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
18984882
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
9492441
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4357.1644449114
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.999999894653
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18984881 can be divided by 2 positive divisors.
The sum of these divisors (counting 18984881) is 18984882, the average is 9492441.
Base
System
Value
2
Binary
1001000011010111110110001
3
Ternary
1022201112100202
4
Quaternary
1020122332301
5
Quinary
14330004011
6
Senary
1514524545
8
Octal
110327661
10
Decimal
18984881
12
Duodecimal
6436755
16
Hexadecimal
121afb1
20
Vigesimal
5id241
36
Base36
bawtt
md5
bd1bba33f952c5fa38eed8e14de99877
sha1
a17602be671735dcd9cb65617c410dd550401532
sha256
7c0da7b7365eca22867bec895f6b7e3e87516e67087ef3658e14c11d00164056
sha512
76737ecfb1476f2117ab890c7d21e05abb6d1765cd0accd0c46f81d652f88e8e6b524d988862e7ff9135ca5d36a8ee6fcd9e3e2e86deb931ade74df983c1fb50
ripemd-160
f17866dbe66ec6ab4fee3e4b4fd97b539f67df0a
Diameter
37969762
Circumference
119285525.35775
Area
1.1323107519697E+15
Volume
2.8662379841554E+22
Surface area
4.5292430078788E+15
Circumference
119285525.35775
Perimeter
75939524
Area
360425706584161
Diagonal
26848676.190239
Surface area
2162554239504966
Volume
6.8426391488412E+21
Space diagonal
32882778.467649
Perimeter
56954643
Area
1.5606890903942E+14
Altitude
16441389.233825
Surface area
1.5606890903942E+14
Volume
8.0641275722636E+20
Height
8949558.7300798