1981102405 is an odd 10-digits composite number following 1981102404
and preceding 1981102406 . In scientific notation, it is written as 1.981102405 × 10^9.
The sum of its digits is 31. It has a total of 4 prime factors and 16 positive divisors.
There are 1547219200 positive integers (up to 1981102405) that are relatively prime to 1981102405.
1981102405 has 16 divisors, whose sum is 2434074624
The reverse of 1981102405 is 5042011891
Previous prime number is 401
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 31
Digital Root 4
Name
one billion nine hundred eighty-one million one hundred two thousand four hundred five
Scientific notation
1.981102405 × 10^9
Engineering notation
1.981102405 × 10^9
Prime Factorization
5 × 47 × 401 × 21023
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1981102405
Product of the distinct prime numbers
The prime factorization of 1981102405 is 5 × 47 × 401 × 21023.
Since it has a total of 4 prime factors.
10 , 1 , 31 , 1 , 892 , 439 , 2514 , 3191 , 7839 , 68650 , 239665 , 85659 , 7732898 , 944102 , 26495091 , 929371 , 163879849 , 343016636 , 2762259361 , 4629037176
n×2
3962204810
n×3
5943307215
n×4
7924409620
n×5
9905512025
n÷2
990551202.5
n÷3
660367468.33333
n÷3
495275601.25
n÷5
396220481
n2
3924766739096784025
n3
7.7753648258886E+27
n4
1.540379395632E+37
n5
3.0516493252991E+46
2 √n
44509.576553816
3 √n
1255.9402391965
4 √n
210.97292848566
5 √n
72.340479822627
1 , 5 , 47 , 235 , 401 , 2005 , 18847 , 21023 , 94235 , 105115 , 988081 , 4940405 , 8430223 , 42151115 , 396220481 , 1981102405
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1981102404
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1981102405 can be divided by 16 positive divisors.
The sum of these divisors (counting 1981102405) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1110110000101010011100101000101
3
Ternary
12010001210102121011
4
Quaternary
1312011103211011
5
Quinary
13024130234110
6
Senary
524325522221
8
Octal
16605234505
10
Decimal
1981102405
12
Duodecimal
473573371
16
Hexadecimal
76153945
20
Vigesimal
1aj1hg05
36
Base36
wrhwed
md5
6859c4321ade2828f029e554ffdcde78
sha1
08a9b1550718171545a38514872067cd8999cc4e
sha256
a75c6536b827872bd3389857e31321b2318f05d5ce311bee9e5610297232706b
sha512
2945e4523b31032a03666abeb7a3dcd99dede83c272ec925c8d8c2b8cba668d2f8bb085be09b34bcf13cbbfb74880b2d79effe5ceb4c0f050c5afa456f80914b
ripemd-160
98e232f12b35088b150447f9dda0ab8591344f60
Diameter
3962204810
Circumference
12447633523.114
Area
1.23300183546E+19
Volume
3.2569372021323E+28
Surface area
4.93200734184E+19
Circumference
12447633523.114
Perimeter
7924409620
Area
3924766739096784025
Diagonal
2801701889.601
Surface area
2.3548600434581E+19
Volume
7.7753648258886E+27
Space diagonal
3431370020.4569
Perimeter
5943307215
Area
1.699473849993E+18
Altitude
1715685010.2284
Surface area
1.699473849993E+18
Volume
9.1633553243087E+26
Height
933900629.86699