1991367907 is an odd 10-digits composite number following 1991367906
and preceding 1991367908 . In scientific notation, it is written as 1.991367907 × 10^9.
The sum of its digits is 52. It has a total of 2 prime factors and 4 positive divisors.
There are 1972034136 positive integers (up to 1991367907) that are relatively prime to 1991367907.
1991367907 has 4 divisors, whose sum is 2010701680
The reverse of 1991367907 is 7097631991
Previous prime number is 103
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 52
Digital Root 7
Name
one billion nine hundred ninety-one million three hundred sixty-seven thousand nine hundred seven
Scientific notation
1.991367907 × 10^9
Engineering notation
1.991367907 × 10^9
Prime Factorization
103 × 19333669
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1991367907
Product of the distinct prime numbers
The prime factorization of 1991367907 is 103 × 19333669.
Since it has a total of 2 prime factors.
5 , 9 , 54 , 35 , 964 , 75 , 8687 , 1308 , 39557 , 16351 , 143036 , 260080 , 7558207 , 5929673 , 4697850 , 69819657 , 19709514 , 481641327 , 7498414627 , 6512494651
n×2
3982735814
n×3
5974103721
n×4
7965471628
n×5
9956839535
n÷2
995683953.5
n÷3
663789302.33333
n÷3
497841976.75
n÷5
398273581.4
n2
3965546141029560649
n3
7.896861318974E+27
n4
1.5725556196634E+37
n5
3.1315367929703E+46
2 √n
44624.745455857
3 √n
1258.1058098853
4 √n
211.24569926002
5 √n
72.415294421543
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
-1991367906
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 1991367907 can be divided by 4 positive divisors.
The sum of these divisors (counting 1991367907) is 1, the average is 0.25.
Base
System
Value
2
Binary
1110110101100011101110011100011
3
Ternary
12010210002222012221
4
Quaternary
1312230131303203
5
Quinary
13034242233112
6
Senary
525333531511
8
Octal
16654356343
10
Decimal
1991367907
12
Duodecimal
476aa3b97
16
Hexadecimal
76b1dce3
20
Vigesimal
1b260jf7
36
Base36
wxlxb7
md5
d58dba629e7c3bed1d4f06234b41f3e9
sha1
bc835341bc15b089013ef5f14121e54de3e74692
sha256
a08cc5a6943d442eef9b1c3fbb144a475c7ea53e957213932175fbcf13dddfb6
sha512
1ec7068b10d234507231acb09705cbdc67ef9fbbc670af0b69021dba188282296df9159a2ffeaa7f0d9d2de9fb641ad51cc1e7d00c948562e2a6f1df69cd0578
ripemd-160
ae68d457f1ce51667bc32a6a6e834f6370fac548
Diameter
3982735814
Circumference
12512133574.451
Area
1.245813062413E+19
Volume
3.3078295341475E+28
Surface area
4.9832522496519E+19
Circumference
12512133574.451
Perimeter
7965471628
Area
3965546141029560649
Diagonal
2816219501.7539
Surface area
2.3793276846177E+19
Volume
7.896861318974E+27
Space diagonal
3449150391.4861
Perimeter
5974103721
Area
1.7171318490055E+18
Altitude
1724575195.743
Surface area
1.7171318490055E+18
Volume
9.3065403145604E+26
Height
938739833.91797