1991231077 is an odd 10-digits composite number following 1991231076
and preceding 1991231078 . In scientific notation, it is written as 1.991231077 × 10^9.
The sum of its digits is 40. It has a total of 3 prime factors and 8 positive divisors.
There are 1809704400 positive integers (up to 1991231077) that are relatively prime to 1991231077.
1991231077 has 8 divisors, whose sum is 2172858912
The reverse of 1991231077 is 7701321991
Previous prime number is 46691
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 40
Digital Root 4
Name
one billion nine hundred ninety-one million two hundred thirty-one thousand seventy-seven
Scientific notation
1.991231077 × 10^9
Engineering notation
1.991231077 × 10^9
Prime Factorization
11 × 46691 × 3877
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1991231077
Product of the distinct prime numbers
The prime factorization of 1991231077 is 11 × 46691 × 3877.
Since it has a total of 3 prime factors.
6 , 9 , 34 , 99 , 29 , 550 , 1299 , 3053 , 82419 , 37934 , 58368 , 322838 , 7453789 , 6570679 , 27859639 , 73273617 , 70326652 , 938297358 , 2887586158 , 8401773081
n×2
3982462154
n×3
5973693231
n×4
7964924308
n×5
9956155385
n÷2
995615538.5
n÷3
663743692.33333
n÷3
497807769.25
n÷5
398246215.4
n2
3965001202010579929
n3
7.8952336137858E+27
n4
1.5721234531945E+37
n5
3.1304610768815E+46
2 √n
44623.212311531
3 √n
1258.0769937534
4 √n
211.24207041101
5 √n
72.414299240587
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
-1991231076
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 1991231077 can be divided by 8 positive divisors.
The sum of these divisors (counting 1991231077) is 1, the average is 0.125.
Base
System
Value
2
Binary
1110110101011111100011001100101
3
Ternary
12010202212000112011
4
Quaternary
1312223330121211
5
Quinary
13034223343302
6
Senary
525330554221
8
Octal
16653743145
10
Decimal
1991231077
12
Duodecimal
476a38971
16
Hexadecimal
76afc665
20
Vigesimal
1b253hdh
36
Base36
wxizqd
md5
5a29dafd60522062170d65daf07ce203
sha1
4e8af135f22c42aaee33fc207926e7439ffa8ab7
sha256
d98e688677619308cfa605c3c5a7e35ab5e3d57a0223b1345bdade677351194a
sha512
cf69f6dc6c384394c2d26eb41b58aac849317c9175dd00f6e2918c41d7fe2f2a3b8d7c03a6c7483fc463d6a64b7dd80ab5f8dca4eb111a0f5cadf3dc7beb86e1
ripemd-160
17666627dd0e25d6aafff56765bd80f64f7693e4
Diameter
3982462154
Circumference
12511273846.206
Area
1.2456418647711E+19
Volume
3.3071477225926E+28
Surface area
4.9825674590845E+19
Circumference
12511273846.206
Perimeter
7964924308
Area
3965001202010579929
Diagonal
2816025994.9122
Surface area
2.3790007212063E+19
Volume
7.8952336137858E+27
Space diagonal
3448913394.9741
Perimeter
5973693231
Area
1.7168958834885E+18
Altitude
1724456697.487
Surface area
1.7168958834885E+18
Volume
9.3046220455999E+26
Height
938675331.6374