1991231042 is an even 10-digits composite number following 1991231041
and preceding 1991231043 . In scientific notation, it is written as 1.991231042 × 10^9.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 995615520 positive integers (up to 1991231042) that are relatively prime to 1991231042.
1991231042 has 4 divisors, whose sum is 2986846566
The reverse of 1991231042 is 2401321991
Previous prime number is 2
Is Prime? no
Number parity even
Number length 10
Sum of Digits 32
Digital Root 5
Name
one billion nine hundred ninety-one million two hundred thirty-one thousand forty-two
Scientific notation
1.991231042 × 10^9
Engineering notation
1.991231042 × 10^9
Prime Factorization
2 × 995615521
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1991231042
Product of the distinct prime numbers
The prime factorization of 1991231042 is 2 × 995615521.
Since it has a total of 2 prime factors.
9 , 2 , 38 , 78 , 374 , 802 , 66 , 9127 , 5255 , 74013 , 686508 , 195081 , 1702583 , 2944601 , 15975501 , 64069544 , 113248090 , 226276260 , 1185559002 , 696336540
n×2
3982462084
n×3
5973693126
n×4
7964924168
n×5
9956155210
n÷2
995615521
n÷3
663743680.66667
n÷3
497807760.5
n÷5
398246208.4
n2
3965001062624405764
n3
7.8952331974607E+27
n4
1.5721233426613E+37
n5
3.1304608017599E+46
2 √n
44623.211919359
3 √n
1258.0769863823
4 √n
211.24206948276
5 √n
72.414298986021
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
-1991231041
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 1991231042 can be divided by 4 positive divisors.
The sum of these divisors (counting 1991231042) is 1, the average is 0.25.
Base
System
Value
2
Binary
1110110101011111100011001000010
3
Ternary
12010202212000110212
4
Quaternary
1312223330121002
5
Quinary
13034223343132
6
Senary
525330554122
8
Octal
16653743102
10
Decimal
1991231042
12
Duodecimal
476a38942
16
Hexadecimal
76afc642
20
Vigesimal
1b253hc2
36
Base36
wxizpe
md5
d60e6e41d535bf8cab7153ca41fcef53
sha1
0912390252930b126fa7c639b87f2f27c7c70014
sha256
e325cc5e58ad285857d2005cbc220b0304a338ba0ddb238b4d9ebd5517cc5dc4
sha512
03f77dfecc12ebf7a2c233a59246d1bb84a809ce2b94c3a1335f8d86529d54b4c536b61ef106cc75f55f41b74ac0ebf7c263fa20370f4fd7eeca9c14f9e327c9
ripemd-160
2aabf00a7434276f9902457c385c039067cb917f
Diameter
3982462084
Circumference
12511273626.294
Area
1.2456418209817E+19
Volume
3.3071475482028E+28
Surface area
4.9825672839266E+19
Circumference
12511273626.294
Perimeter
7964924168
Area
3965001062624405764
Diagonal
2816025945.4147
Surface area
2.3790006375746E+19
Volume
7.8952331974607E+27
Space diagonal
3448913334.3523
Perimeter
5973693126
Area
1.7168958231325E+18
Altitude
1724456667.1762
Surface area
1.7168958231325E+18
Volume
9.304621554956E+26
Height
938675315.13824