18994087 is an odd 8-digits composite number following 18994086
and preceding 18994088 . In scientific notation, it is written as 1.8994087 × 10^7.
The sum of its digits is 46. It has a total of 3 prime factors and 8 positive divisors.
There are 15973152 positive integers (up to 18994087) that are relatively prime to 18994087.
18994087 has 8 divisors, whose sum is 22117536
The reverse of 18994087 is 78049981
Previous prime number is 53
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 46
Digital Root 1
Name
eighteen million nine hundred ninety-four thousand eighty-seven
Scientific notation
1.8994087 × 10^7
Engineering notation
1.8994087 × 10^6
Prime Factorization
7 × 53 × 51197
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
18994087
Product of the distinct prime numbers
The prime factorization of 18994087 is 7 × 53 × 51197.
Since it has a total of 3 prime factors.
8 , 5 , 65 , 94 , 346 , 787 , 2443 , 1698 , 41881 , 14643 , 445181 , 850798 , 2832356 , 2450250 , 27164124 , 61015767 , 907625936 , 807054390 , 4271071535 , 2073724255
n×2
37988174
n×3
56982261
n×4
75976348
n×5
94970435
n÷2
9497043.5
n÷3
6331362.3333333
n÷3
4748521.75
n÷5
3798817.4
n2
360775340963569
n3
6.8525982137167E+21
n4
1.3015884664738E+29
n5
2.47224845704E+36
2 √n
4358.2206231443
3 √n
266.81248084409
4 √n
66.016820759139
5 √n
28.557730088924
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-18994086
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 18994087 can be divided by 8 positive divisors.
The sum of these divisors (counting 18994087) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001000011101001110100111
3
Ternary
1022201222222201
4
Quaternary
1020131032213
5
Quinary
14330302322
6
Senary
1515035331
8
Octal
110351647
10
Decimal
18994087
12
Duodecimal
643bb47
16
Hexadecimal
121d3a7
20
Vigesimal
5ie547
36
Base36
bb3xj
md5
b6c6d27c69a3c16a16f35c48a2d3505d
sha1
b98583756ed1f89ae88a2b8d31ea9d6f39ecb4cc
sha256
6f086219a4c3f9de4de452cdc0e2b811466cb963875c2fea2c6f5988112a49f7
sha512
4322e55133eec041bbe2df834af6cf81b05cd9278a15da2a3c06eb033692731cc2373bde133742e7b0016dce1a2f16a730560c76af7543396b83e16184604a28
ripemd-160
2be4d2e6843c3622bad9f88201c0abbf7c31cc05
Diameter
37988174
Circumference
119343368.36169
Area
1.1334091607675E+15
Volume
2.8704096274953E+22
Surface area
4.53363664307E+15
Circumference
119343368.36169
Perimeter
75976348
Area
360775340963569
Diagonal
26861695.440294
Surface area
2164652045781414
Volume
6.8525982137167E+21
Space diagonal
32898723.727384
Perimeter
56982261
Area
1.5622030516672E+14
Altitude
16449361.863692
Surface area
1.5622030516672E+14
Volume
8.0758644427765E+20
Height
8953898.4800982