18841381 is an odd 8-digits composite number following 18841380
and preceding 18841382 . In scientific notation, it is written as 1.8841381 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 17392032 positive integers (up to 18841381) that are relatively prime to 18841381.
18841381 has 4 divisors, whose sum is 20290732
The reverse of 18841381 is 18314881
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
eighteen million eight hundred forty-one thousand three hundred eighty-one
Scientific notation
1.8841381 × 10^7
Engineering notation
1.8841381 × 10^6
Prime Factorization
13 × 1449337
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
18841381
Product of the distinct prime numbers
The prime factorization of 18841381 is 13 × 1449337.
Since it has a total of 2 prime factors.
4 , 9 , 49 , 10 , 309 , 999 , 3176 , 9335 , 13563 , 272 , 316423 , 428058 , 7929320 , 6159771 , 1186733 , 21170609 , 664803134 , 582448629 , 2325147722 , 326231642
n×2
37682762
n×3
56524143
n×4
75365524
n×5
94206905
n÷2
9420690.5
n÷3
6280460.3333333
n÷3
4710345.25
n÷5
3768276.2
n2
354997637987161
n3
6.6886457514162E+21
n4
1.2602332297646E+29
n5
2.3744534430856E+36
2 √n
4340.6659627297
3 √n
266.09552884453
4 √n
65.883730637614
5 √n
28.511662816061
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
-18841380
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 18841381 can be divided by 4 positive divisors.
The sum of these divisors (counting 18841381) is 1, the average is 0.25.
Base
System
Value
2
Binary
1000111110111111100100101
3
Ternary
1022110020111221
4
Quaternary
1013313330211
5
Quinary
14310411011
6
Senary
1511500341
8
Octal
107677445
10
Decimal
18841381
12
Duodecimal
63876b1
16
Hexadecimal
11f7f25
20
Vigesimal
5hf391
36
Base36
b7u3p
md5
d3ddbc452d9a912df2252a2440fce206
sha1
4065899eb9e812ef44a0aa34d102fa4efc6e97be
sha256
5f59651f1fb7ad7bec598ede656d0c74ee2028de9d1d100fa29de1bffbb8b416
sha512
103e045f290b03da6376d9d2960e3c87b3339b4907ce74ae808bb2dbba0c80c9417d7dcff341266e5946e9fb3579f05daf0ed2cf5d2806b7c307c0d61c6cfb85
ripemd-160
8265611f8cbd4b62b86ea5884ec55263db55752c
Diameter
37682762
Circumference
118383888.26617
Area
1.1152579715422E+15
Volume
2.8017333806818E+22
Surface area
4.4610318861688E+15
Circumference
118383888.26617
Perimeter
75365524
Area
354997637987161
Diagonal
26645736.544039
Surface area
2129985827922966
Volume
6.6886457514162E+21
Space diagonal
32634229.176763
Perimeter
56524143
Area
1.5371848639018E+14
Altitude
16317114.588381
Surface area
1.5371848639018E+14
Volume
7.8826446129683E+20
Height
8881912.1813463