1981129718 is an even 10-digits composite number following 1981129717
and preceding 1981129719 . In scientific notation, it is written as 1.981129718 × 10^9.
The sum of its digits is 47. It has a total of 4 prime factors and 16 positive divisors.
There are 962953056 positive integers (up to 1981129718) that are relatively prime to 1981129718.
1981129718 has 16 divisors, whose sum is 3055559760
The reverse of 1981129718 is 8179211891
Previous prime number is 109
Is Prime? no
Number parity even
Number length 10
Sum of Digits 47
Digital Root 2
Name
one billion nine hundred eighty-one million one hundred twenty-nine thousand seven hundred eighteen
Scientific notation
1.981129718 × 10^9
Engineering notation
1.981129718 × 10^9
Prime Factorization
2 × 53 × 109 × 171467
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1981129718
Product of the distinct prime numbers
The prime factorization of 1981129718 is 2 × 53 × 109 × 171467.
Since it has a total of 4 prime factors.
6 , 1 , 75 , 86 , 333 , 854 , 1348 , 9270 , 24984 , 10507 , 735230 , 777147 , 1369099 , 586903 , 33620279 , 21177790 , 735281296 , 260127867 , 1684647523 , 9548483343
n×2
3962259436
n×3
5943389154
n×4
7924518872
n×5
9905648590
n÷2
990564859
n÷3
660376572.66667
n÷3
495282429.5
n÷5
396225943.6
n2
3924874959542759524
n3
7.7756864217842E+27
n4
1.5404643448046E+37
n5
3.0518596930117E+46
2 √n
44509.88337437
3 √n
1255.9460109557
4 √n
210.97365564063
5 √n
72.340679289815
1 , 2 , 53 , 106 , 109 , 218 , 5777 , 11554 , 171467 , 342934 , 9087751 , 18175502 , 18689903 , 37379806 , 990564859 , 1981129718
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
-1981129717
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 1981129718 can be divided by 16 positive divisors.
The sum of these divisors (counting 1981129718) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1110110000101011010001111110110
3
Ternary
12010001211211001202
4
Quaternary
1312011122033312
5
Quinary
13024132122333
6
Senary
524330252502
8
Octal
16605321766
10
Decimal
1981129718
12
Duodecimal
473587132
16
Hexadecimal
7615a3f6
20
Vigesimal
1aj2145i
36
Base36
wrihh2
md5
0f0b334f5e1ded62844f4a9c0ef0f2d4
sha1
0468d8ba305623d39d88ab3f4dcfcbcb4940c706
sha256
9e3c07aaf428011423ee6614775a5f1f126f86391fd18f284bc2ce8288c840e5
sha512
a5f910bae7e5c4e8198b460152760bd7bfa4beb4c09c9d614dbe1502eaa42d5de8949129a28150d5fa31a7e419ba43365ec416b56d0272425c0c772689abcf77
ripemd-160
edb23905e88f3e881cf25e54fa1b3be277b20ba4
Diameter
3962259436
Circumference
12447805135.754
Area
1.2330358339158E+19
Volume
3.257071911906E+28
Surface area
4.9321433356632E+19
Circumference
12447805135.754
Perimeter
7924518872
Area
3924874959542759524
Diagonal
2801740516.016
Surface area
2.3549249757257E+19
Volume
7.7756864217842E+27
Space diagonal
3431417327.9606
Perimeter
5943389154
Area
1.6995207108207E+18
Altitude
1715708663.9803
Surface area
1.6995207108207E+18
Volume
9.1637343287063E+26
Height
933913505.33866