1991231064 is an even 10-digits composite number following 1991231063
and preceding 1991231065 . In scientific notation, it is written as 1.991231064 × 10^9.
The sum of its digits is 36. It has a total of 5 prime factors and 16 positive divisors.
There are 663743664 positive integers (up to 1991231064) that are relatively prime to 1991231064.
1991231064 has 16 divisors, whose sum is 4148398200
The reverse of 1991231064 is 4601321991
Previous prime number is 9
Is Prime? no Number parity even Number length 10 Sum of Digits 36 Digital Root 9
Name
one billion nine hundred ninety-one million two hundred thirty-one thousand sixty-four
Scientific notation
1.991231064 × 10^9
Engineering notation
1.991231064 × 10^9
Prime Factorization
2 × 2 × 2 × 9 × 27655987
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
5 Total number of prime factors
rad Radical
497807766 Product of the distinct prime numbers
The prime factorization of 1991231064 is 2 × 2 × 2 × 9 × 27655987.
Since it has a total of 5 prime factors.
5 , 9 , 80 , 75 , 190 , 212 , 2976 , 4886 , 37434 , 97560 , 313897 , 635596 , 283496 , 707322 , 64186030 , 22173991 , 850904446 , 897849978 , 1200871402 , 2654396305
n×2
3982462128
n×3
5973693192
n×4
7964924256
n×5
9956155320
n÷2
995615532
n÷3
663743688
n÷3
497807766
n÷5
398246212.8
n2
3965001150238572096
n3
7.8952334591508E+27
n4
1.5721234121393E+37
n5
3.1304609746935E+46
2 √n44623.212165867
3 √n1258.0769910156
4 √n211.24207006623
5 √n72.414299146034
1 , 2 , 4 , 8 , 9 , 18 , 36 , 72 , 27655987 , 55311974 , 110623948 , 221247896 , 248903883 , 497807766 , 995615532 , 1991231064
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
-1991231063 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 1991231064 can be divided by 16 positive divisors.
The sum of these divisors (counting 1991231064) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1110110101011111100011001011000
3
Ternary
12010202212000111200
4
Quaternary
1312223330121120
5
Quinary
13034223343224
6
Senary
525330554200
8
Octal
16653743130
10
Decimal
1991231064
12
Duodecimal
476a38960
16
Hexadecimal
76afc658
20
Vigesimal
1b253hd4
36
Base36
wxizq0
md5
2abfb1dad16696ab6fe9d750d02b6867
sha1
9577802faa4fc1378ef046dacd9590d2da12253e
sha256
9ce43c6b217de6ad12ff7768bd4605d65aa9cd18e58cd0f1e9688b997374f4c2
sha512
61dbe2b2ecc420d7d449109770cc7e7f77be7d0f3b11432200a67e51a0402340c5b378db94007105b9cfccbff4eb84d6985e0aebbc7f6a3f8d742d8c519c04be
ripemd-160
7d7938bed0b5c0ce40485536b9d7148381bf451a
Diameter
3982462128
Circumference
12511273764.524
Area
1.2456418485065E+19
Volume
3.3071476578193E+28
Surface area
4.9825673940258E+19
Circumference
12511273764.524
Perimeter
7964924256
Area
3965001150238572096
Diagonal
2816025976.5274
Surface area
2.3790006901431E+19
Volume
7.8952334591508E+27
Space diagonal
3448913372.4574
Perimeter
5973693192
Area
1.7168958610706E+18
Altitude
1724456686.2287
Surface area
1.7168958610706E+18
Volume
9.3046218633607E+26
Height
938675325.50914