1991749984 is an even 10-digits composite number following 1991749983
and preceding 1991749985 . In scientific notation, it is written as 1.991749984 × 10^9.
The sum of its digits is 61. It has a total of 7 prime factors and 24 positive divisors.
There are 853607040 positive integers (up to 1991749984) that are relatively prime to 1991749984.
1991749984 has 24 divisors, whose sum is 4481437968
The reverse of 1991749984 is 4899471991
Previous prime number is 7
Is Prime? no Number parity even Number length 10 Sum of Digits 61 Digital Root 7
Name
one billion nine hundred ninety-one million seven hundred forty-nine thousand nine hundred eighty-four
Scientific notation
1.991749984 × 10^9
Engineering notation
1.991749984 × 10^9
Prime Factorization
2 × 2 × 2 × 2 × 2 × 7 × 8891741
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
7 Total number of prime factors
rad Radical
124484374 Product of the distinct prime numbers
The prime factorization of 1991749984 is 2 × 2 × 2 × 2 × 2 × 7 × 8891741.
Since it has a total of 7 prime factors.
5 , 3 , 52 , 47 , 783 , 57 , 8104 , 2066 , 84321 , 7098 , 709709 , 572078 , 3556369 , 2253463 , 70279511 , 83603939 , 866777782 , 758067921 , 7399682001 , 8907950444
n×2
3983499968
n×3
5975249952
n×4
7966999936
n×5
9958749920
n÷2
995874992
n÷3
663916661.33333
n÷3
497937496
n÷5
398349996.8
n2
3967067998764000256
n3
7.9014076230651E+27
n4
1.5737628506817E+37
n5
3.1345421326652E+46
2 √n44629.02624974
3 √n1258.1862675701
4 √n211.25583127985
5 √n72.418073023643
1 , 2 , 4 , 7 , 8 , 14 , 16 , 28 , 32 , 56 , 112 , 224 , 8891741 , 17783482 , 35566964 , 62242187 , 71133928 , 124484374 , 142267856 , 248968748 , 284535712 , 497937496 , 995874992 , 1991749984
24 divisors
τ Total Divisors
24 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-1991749983 Sum of the proper positive divisors of n
A Arithmetic Mean
0.041666666666667 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
24 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1991749984 can be divided by 24 positive divisors.
The sum of these divisors (counting 1991749984) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1110110101101111011000101100000
3
Ternary
12010210211101022221
4
Quaternary
1312231323011200
5
Quinary
13034341444414
6
Senary
525350040424
8
Octal
16655730540
10
Decimal
1991749984
12
Duodecimal
477049114
16
Hexadecimal
76b7b160
20
Vigesimal
1b288ej4
36
Base36
wxu44g
md5
f81fd0bd0af68f4c34ab34e24a289529
sha1
95433115efc8b2404e1f7c21473871e28e4fddd0
sha256
f04d801a95d7ccc38a6cae86d813267a5ebca4caa697f0e0bd4a5bf63cfaa0bf
sha512
163b7e086e91e34252e18c94aa0e3c6ff603f10ceeb1c98084cb3425e275d4ffe56f73e073b7f78d80c21bc06efed82efde6d53edb5e676adeb7a045e3e748e6
ripemd-160
1e53865744770226f8556cb00fca9ec95f0f601f
Diameter
3983499968
Circumference
12514534235.044
Area
1.2462911681208E+19
Volume
3.309733885552E+28
Surface area
4.9851646724833E+19
Circumference
12514534235.044
Perimeter
7966999936
Area
3967067998764000256
Diagonal
2816759840.2292
Surface area
2.3802407992584E+19
Volume
7.9014076230651E+27
Space diagonal
3449812168.2625
Perimeter
5975249952
Area
1.717790832735E+18
Altitude
1724906084.1312
Surface area
1.717790832735E+18
Volume
9.311898185314E+26
Height
938919946.74307