1991444 is an even 7-digits composite number following 1991443
and preceding 1991445 . In scientific notation, it is written as 1.991444 × 10^6.
The sum of its digits is 32. It has a total of 4 prime factors and 12 positive divisors.
There are 787680 positive integers (up to 1991444) that are relatively prime to 1991444.
1991444 has 12 divisors, whose sum is 3523968
The reverse of 1991444 is 4441991
Previous prime number is 91
Is Prime? no
Number parity even
Number length 7
Sum of Digits 32
Digital Root 5
Name
one million nine hundred ninety-one thousand four hundred forty-four
Scientific notation
1.991444 × 10^6
Engineering notation
1.991444 × 10^6
Prime Factorization
2 × 2 × 91 × 5471
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
995722
Product of the distinct prime numbers
The prime factorization of 1991444 is 2 × 2 × 91 × 5471.
Since it has a total of 4 prime factors.
2 , 3 , 95 , 92 , 75 , 513 , 1040 , 58 , 2398 , 64099 , 959446 , 841455 , 6866256 , 7701716 , 6048856 , 53506512 , 261980479 , 542943530 , 7493318918 , 8161006862
n×2
3982888
n×3
5974332
n×4
7965776
n×5
9957220
n÷2
995722
n÷3
663814.66666667
n÷3
497861
n÷5
398288.8
n2
3965849205136
n3
7897766604472856384
n4
1.5727959917878E+25
n5
3.1321351410698E+31
2 √n
1411.1853173839
3 √n
125.8121834352
4 √n
37.565746596919
5 √n
18.190038559386
1 , 2 , 4 , 91 , 182 , 364 , 5471 , 10942 , 21884 , 497861 , 995722 , 1991444
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1991443
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1991444 can be divided by 12 positive divisors.
The sum of these divisors (counting 1991444) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
111100110001100010100
3
Ternary
10202011202012
4
Quaternary
13212030110
5
Quinary
1002211234
6
Senary
110403352
8
Octal
7461424
10
Decimal
1991444
12
Duodecimal
800558
16
Hexadecimal
1e6314
20
Vigesimal
c8ic4
36
Base36
16olw
md5
e1a95a4c23274b12e5142735d9314ad9
sha1
5b0124d0becc06bb7b264400d47322cd5fe4b516
sha256
971b5a050a8ad1c55e1ef5c87b61d6ff8091fb2215c61d5170facedf5891bb1b
sha512
a807d752302da2f3e361bfd27a0b881c35d88a83719dd2a48db677ae5153b99ea33cc1b4849cc9a33333293eb326f3ee5a722a7cae5d6708722ec817bebbad82
ripemd-160
b13a93f33b93d3c4fedb15bf98bb1911e759cd1d
Diameter
3982888
Circumference
12512611.680871
Area
12459082728100
Volume
3.3082087392505E+19
Surface area
49836330912401
Circumference
12512611.680871
Perimeter
7965776
Area
3965849205136
Diagonal
2816327.1135065
Surface area
23795095230816
Volume
7897766604472856384
Space diagonal
3449282.1884282
Perimeter
5974332
Area
1717263079613
Altitude
1724641.0942141
Surface area
1717263079613
Volume
9.3076072037524E+17
Height
938775.70450218