18371381 is an odd 8-digits composite number following 18371380
and preceding 18371382 . In scientific notation, it is written as 1.8371381 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 15746892 positive integers (up to 18371381) that are relatively prime to 18371381.
18371381 has 4 divisors, whose sum is 20995872
The reverse of 18371381 is 18317381
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
eighteen million three hundred seventy-one thousand three hundred eighty-one
Scientific notation
1.8371381 × 10^7
Engineering notation
1.8371381 × 10^6
Prime Factorization
7 × 2624483
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18371381
Product of the distinct prime numbers
The prime factorization of 18371381 is 7 × 2624483.
Since it has a total of 2 prime factors.
6 , 4 , 64 , 83 , 881 , 335 , 6902 , 4106 , 32776 , 87562 , 174992 , 377301 , 9756871 , 3624354 , 41042406 , 42340358 , 678585863 , 682810965 , 9478557596 , 7816213317
n×2
36742762
n×3
55114143
n×4
73485524
n×5
91856905
n÷2
9185690.5
n÷3
6123793.6666667
n÷3
4592845.25
n÷5
3674276.2
n2
337507639847161
n3
6.200481442043E+21
n4
1.139114069552E+29
n5
2.09270985742E+36
2 √n
4286.1849003514
3 √n
263.86427922098
4 √n
65.468961350791
5 √n
28.36797665102
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
-18371380
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 18371381 can be divided by 4 positive divisors.
The sum of these divisors (counting 18371381) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000110000101001100110101
3
Ternary
1021120100210112
4
Quaternary
1012011030311
5
Quinary
14200341011
6
Senary
1453432405
8
Octal
106051465
10
Decimal
18371381
12
Duodecimal
619b705
16
Hexadecimal
1185335
20
Vigesimal
5eg891
36
Base36
axrg5
md5
a461077aa87f5f0fe85d3191612498f2
sha1
f6f8b7ab4a589481821e5f3f5b8ced58b68f4773
sha256
f0ac10a985774b45a79f715021cc6c39b531111d2c0f9b6a997448c73064da66
sha512
eecbc3f0a5184d894ee6fd3feb0b17caec11283ada69e31c8dd777fbbaa6e7546b940648f190292502f4bdf2222f4c04a0f3f8cd2d6ddc586774e82571b744ff
ripemd-160
cf7b91b55f483e0414f217c72da63bed8a8b3372
Diameter
36742762
Circumference
115430791.1718
Area
1.0603115218743E+15
Volume
2.5972515929389E+22
Surface area
4.2412460874971E+15
Circumference
115430791.1718
Perimeter
73485524
Area
337507639847161
Diagonal
25981056.169723
Surface area
2025045839082966
Volume
6.200481442043E+21
Space diagonal
31820165.297206
Perimeter
55114143
Area
1.4614509503949E+14
Altitude
15910082.648603
Surface area
1.4614509503949E+14
Volume
7.3073374571499E+20
Height
8660352.0565745