1991231051 is an odd 10-digits composite number following 1991231050
and preceding 1991231052 . In scientific notation, it is written as 1.991231051 × 10^9.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 1942664400 positive integers (up to 1991231051) that are relatively prime to 1991231051.
1991231051 has 4 divisors, whose sum is 2039797704
The reverse of 1991231051 is 1501321991
Previous prime number is 41
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 32
Digital Root 5
Name
one billion nine hundred ninety-one million two hundred thirty-one thousand fifty-one
Scientific notation
1.991231051 × 10^9
Engineering notation
1.991231051 × 10^9
Prime Factorization
41 × 48566611
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1991231051
Product of the distinct prime numbers
The prime factorization of 1991231051 is 41 × 48566611.
Since it has a total of 2 prime factors.
4 , 8 , 20 , 90 , 994 , 697 , 7344 , 8443 , 32161 , 15823 , 462776 , 702687 , 4309839 , 9091184 , 10791765 , 59856394 , 55691534 , 568261934 , 5087045024 , 4708081202
n×2
3982462102
n×3
5973693153
n×4
7964924204
n×5
9956155255
n÷2
995615525.5
n÷3
663743683.66667
n÷3
497807762.75
n÷5
398246210.2
n2
3965001098466564601
n3
7.8952333045157E+27
n4
1.5721233710841E+37
n5
3.1304608725055E+46
2 √n
44623.212020203
3 √n
1258.0769882777
4 √n
211.24206972145
5 √n
72.414299051481
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
-1991231050
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 1991231051 can be divided by 4 positive divisors.
The sum of these divisors (counting 1991231051) is 1, the average is 0.25.
Base
System
Value
2
Binary
1110110101011111100011001001011
3
Ternary
12010202212000111012
4
Quaternary
1312223330121023
5
Quinary
13034223343201
6
Senary
525330554135
8
Octal
16653743113
10
Decimal
1991231051
12
Duodecimal
476a3894b
16
Hexadecimal
76afc64b
20
Vigesimal
1b253hcb
36
Base36
wxizpn
md5
9e34f4e4c5186e93eab3bcec5652a054
sha1
07d6268e185f75843464689951f9836e046120cf
sha256
a57041039768199233a49fd693f731e6c90442a30663581b6fe67f5be8e9ee15
sha512
7faee265ace4228de127906aa0ecbec5954d12de56991359dfd728996a3af7a566a67035de13babb1add6623bf5228c43004930422298ab6aa8c9d548b4a6631
ripemd-160
1a26b9c6ed27258bf85e14cf28ef94fcbb7c55c5
Diameter
3982462102
Circumference
12511273682.843
Area
1.2456418322418E+19
Volume
3.3071475930459E+28
Surface area
4.9825673289672E+19
Circumference
12511273682.843
Perimeter
7964924204
Area
3965001098466564601
Diagonal
2816025958.1426
Surface area
2.3790006590799E+19
Volume
7.8952333045157E+27
Space diagonal
3448913349.9408
Perimeter
5973693153
Area
1.7168958386526E+18
Altitude
1724456674.9704
Surface area
1.7168958386526E+18
Volume
9.3046216811216E+26
Height
938675319.38088