1991456061 is an odd 10-digits composite number following 1991456060
and preceding 1991456062 . In scientific notation, it is written as 1.991456061 × 10^9.
The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors.
There are 1137974880 positive integers (up to 1991456061) that are relatively prime to 1991456061.
1991456061 has 4 divisors, whose sum is 2086287324
The reverse of 1991456061 is 1606541991
Previous prime number is 21
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 42
Digital Root 6
Name
one billion nine hundred ninety-one million four hundred fifty-six thousand sixty-one
Scientific notation
1.991456061 × 10^9
Engineering notation
1.991456061 × 10^9
Prime Factorization
21 × 94831241
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1991456061
Product of the distinct prime numbers
The prime factorization of 1991456061 is 21 × 94831241.
Since it has a total of 2 prime factors.
6 , 7 , 79 , 67 , 227 , 911 , 8995 , 4533 , 30976 , 85432 , 22897 , 968625 , 6336578 , 8798515 , 86738310 , 35057333 , 733403544 , 919100000 , 1979104906 , 3657823713
n×2
3982912122
n×3
5974368183
n×4
7965824244
n×5
9957280305
n÷2
995728030.5
n÷3
663818687
n÷3
497864015.25
n÷5
398291212.2
n2
3965897242893635721
n3
7.8979101016637E+27
n4
1.5728340941191E+37
n5
3.132229989681E+46
2 √n
44625.733170448
3 √n
1258.1243742472
4 √n
211.2480370807
5 √n
72.415935547153
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
-1991456060
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 1991456061 can be divided by 4 positive divisors.
The sum of these divisors (counting 1991456061) is 1, the average is 0.25.
Base
System
Value
2
Binary
1110110101100110011010100111101
3
Ternary
12010210021110010220
4
Quaternary
1312230303110331
5
Quinary
13034303043221
6
Senary
525335451553
8
Octal
16654632475
10
Decimal
1991456061
12
Duodecimal
476b26bb9
16
Hexadecimal
76b3353d
20
Vigesimal
1b26c031
36
Base36
wxntbx
md5
0ea8859798ab50016678b5923e64940d
sha1
5040d591fef63b8e348de0a7d036fc99c8365a4e
sha256
130d341477021a879a45033dd0ebde0f394d8675b0d88cd3f0429aeca3e8a2fa
sha512
03dc87a9dba27c10bd27ba41d12cb1e5d90ed073be52f07635fee397abbef3203dc58884871557f1aadf1ee9cf189ff25f88c2069f64cfdebe435e0769a6d66b
ripemd-160
d87bb380c91683c632579ad6f63bb9aa40474513
Diameter
3982912122
Circumference
12512687462.369
Area
1.2459233643167E+19
Volume
3.3082688472132E+28
Surface area
4.9836934572667E+19
Circumference
12512687462.369
Perimeter
7965824244
Area
3965897242893635721
Diagonal
2816344170.3363
Surface area
2.3795383457362E+19
Volume
7.8979101016637E+27
Space diagonal
3449303078.693
Perimeter
5974368183
Area
1.7172838805723E+18
Altitude
1724651539.3465
Surface area
1.7172838805723E+18
Volume
9.3077763168136E+26
Height
938781390.1121