1991423 is an odd 7-digits composite number following 1991422
and preceding 1991424 . In scientific notation, it is written as 1.991423 × 10^6.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 1706928 positive integers (up to 1991423) that are relatively prime to 1991423.
1991423 has 4 divisors, whose sum is 2275920
The reverse of 1991423 is 3241991
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 29
Digital Root 2
Name
one million nine hundred ninety-one thousand four hundred twenty-three
Scientific notation
1.991423 × 10^6
Engineering notation
1.991423 × 10^6
Prime Factorization
7 × 284489
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1991423
Product of the distinct prime numbers
The prime factorization of 1991423 is 7 × 284489.
Since it has a total of 2 prime factors.
5 , 4 , 27 , 51 , 623 , 363 , 1116 , 507 , 90288 , 26176 , 525720 , 295190 , 5508710 , 9038563 , 86406982 , 36408308 , 51313797 , 994834979 , 2606660971 , 9292134692
n×2
3982846
n×3
5974269
n×4
7965692
n×5
9957115
n÷2
995711.5
n÷3
663807.66666667
n÷3
497855.75
n÷5
398284.6
n2
3965765564929
n3
7897516758607603967
n4
1.5727296515977E+25
n5
3.1319700009736E+31
2 √n
1411.1778768107
3 √n
125.81174119913
4 √n
37.565647562776
5 √n
18.190000196026
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
-1991422
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 1991423 can be divided by 4 positive divisors.
The sum of these divisors (counting 1991423) is 1, the average is 0.25.
Base
System
Value
2
Binary
111100110001011111111
3
Ternary
10202011201102
4
Quaternary
13212023333
5
Quinary
1002211143
6
Senary
110403315
8
Octal
7461377
10
Decimal
1991423
12
Duodecimal
80053b
16
Hexadecimal
1e62ff
20
Vigesimal
c8ib3
36
Base36
16olb
md5
5c2a4f0443cdbb76a2a235fd1606f669
sha1
03d0077c871b95e5c9f4e5c39eeff492bde06c95
sha256
5ab0438f009a224d927dd29b1eb2aa48b2ba5a9a9fdc81c91153c9351f7e7d52
sha512
e7d076ad891a6cfb74a2838a4d14491b405f0e23ec0f66ef499932c982fb390b2541cfbb2af37b4305a566334feba74d3e1b1492d31dbb016f581d43ff714293
ripemd-160
9521cbe0e67b30182958fdb88a6f6f9629986528
Diameter
3982846
Circumference
12512479.733979
Area
12458819964640
Volume
3.3081040840592E+19
Surface area
49835279858561
Circumference
12512479.733979
Perimeter
7965692
Area
3965765564929
Diagonal
2816297.4150217
Surface area
23794593389574
Volume
7897516758607603967
Space diagonal
3449245.8153612
Perimeter
5974269
Area
1717226862341
Altitude
1724622.9076806
Surface area
1717226862341
Volume
9.3073127575764E+17
Height
938765.80500724