1681031891 is an odd 10-digits composite number following 1681031890
and preceding 1681031892 . In scientific notation, it is written as 1.681031891 × 10^9.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 1309894920 positive integers (up to 1681031891) that are relatively prime to 1681031891.
1681031891 has 8 divisors, whose sum is 2095832064
The reverse of 1681031891 is 1981301861
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 38
Digital Root 2
Name
one billion six hundred eighty-one million thirty-one thousand eight hundred ninety-one
Scientific notation
1.681031891 × 10^9
Engineering notation
1.681031891 × 10^9
Prime Factorization
7 × 11 × 21831583
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1681031891
Product of the distinct prime numbers
The prime factorization of 1681031891 is 7 × 11 × 21831583.
Since it has a total of 3 prime factors.
7 , 9 , 1 , 28 , 970 , 688 , 5684 , 4375 , 80502 , 43951 , 857678 , 25013 , 3321131 , 9795614 , 13527375 , 20876171 , 560381459 , 747338263 , 3538652370 , 2203748061
n×2
3362063782
n×3
5043095673
n×4
6724127564
n×5
8405159455
n÷2
840515945.5
n÷3
560343963.66667
n÷3
420257972.75
n÷5
336206378.2
n2
2825868218559035881
n3
4.7503745951611E+27
n4
7.985531188662E+36
n5
1.3423932594716E+46
2 √n
41000.38891279
3 √n
1189.0277327838
4 √n
202.48552766257
5 √n
70.002764388067
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
-1681031890
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 1681031891 can be divided by 8 positive divisors.
The sum of these divisors (counting 1681031891) is 1, the average is 0.125.
Base
System
Value
2
Binary
1100100001100101000001011010011
3
Ternary
11100011011021020102
4
Quaternary
1210030220023103
5
Quinary
11420321010031
6
Senary
434450203015
8
Octal
14414501323
10
Decimal
1681031891
12
Duodecimal
3aab8346b
16
Hexadecimal
643282d3
20
Vigesimal
16568jeb
36
Base36
rsucib
md5
2362c4053f86925736b886ec3c3d740b
sha1
088538f7bee9771106b5f6f717b962e05f77511e
sha256
f5603e87acb12c52a5ed3de85944adf032a50dada73e560e6735f3590f0b7270
sha512
4a28ec11c96af2b4c3375967a1a255474a920168789e15e722e6b3bd35acadff0aeaa44de8a9991a4cb955cb24a6463e39a42395f5c0a4a6caf91534dea75f20
ripemd-160
6d1fa4ffa9434491671873c3fa77d80ee51e564d
Diameter
3362063782
Circumference
10562234878.432
Area
8.8777268354379E+18
Volume
1.9898322573277E+28
Surface area
3.5510907341752E+19
Circumference
10562234878.432
Perimeter
6724127564
Area
2825868218559035881
Diagonal
2377338099.0339
Surface area
1.6955209311354E+19
Volume
4.7503745951611E+27
Space diagonal
2911632644.3556
Perimeter
5043095673
Area
1.2236368325096E+18
Altitude
1455816322.1778
Surface area
1.2236368325096E+18
Volume
5.5983701490245E+26
Height
792446033.0113