1991451 is an odd 7-digits composite number following 1991450
and preceding 1991452 . In scientific notation, it is written as 1.991451 × 10^6.
The sum of its digits is 30. It has a total of 5 prime factors and 32 positive divisors.
There are 1002240 positive integers (up to 1991451) that are relatively prime to 1991451.
1991451 has 32 divisors, whose sum is 3414528
The reverse of 1991451 is 1541991
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 30
Digital Root 3
Name
one million nine hundred ninety-one thousand four hundred fifty-one
Scientific notation
1.991451 × 10^6
Engineering notation
1.991451 × 10^6
Prime Factorization
3 × 7 × 11 × 37 × 233
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
1991451
Product of the distinct prime numbers
The prime factorization of 1991451 is 3 × 7 × 11 × 37 × 233.
Since it has a total of 5 prime factors.
9 , 4 , 26 , 13 , 280 , 677 , 6657 , 5496 , 39253 , 99836 , 568931 , 652750 , 2014123 , 8628830 , 71864274 , 32104903 , 99199829 , 672619055 , 9655196710 , 7597966673
n×2
3982902
n×3
5974353
n×4
7965804
n×5
9957255
n÷2
995725.5
n÷3
663817
n÷3
497862.75
n÷5
398290.2
n2
3965877085401
n3
7897849887598906851
n4
1.5728181056509E+25
n5
3.1321901893165E+31
2 √n
1411.1877975663
3 √n
125.81233084654
4 √n
37.565779608126
5 √n
18.190051347101
1 , 3 , 7 , 11 , 21 , 33 , 37 , 77 , 111 , 231 , 233 , 259 , 407 , 699 , 777 , 1221 , 1631 , 2563 , 2849 , 4893 , 7689 , 8547 , 8621 , 17941 , 25863 , 53823 , 60347 , 94831 , 181041 , 284493 , 663817 , 1991451
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1991450
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1991451 can be divided by 32 positive divisors.
The sum of these divisors (counting 1991451) is 1, the average is 0.03125.
Base
System
Value
2
Binary
111100110001100011011
3
Ternary
10202011202110
4
Quaternary
13212030123
5
Quinary
1002211301
6
Senary
110403403
8
Octal
7461433
10
Decimal
1991451
12
Duodecimal
800563
16
Hexadecimal
1e631b
20
Vigesimal
c8icb
36
Base36
16om3
md5
45a0b44c367d1cd3d887c3784426c663
sha1
c9bd6e36b971c168a333873e874586c2e7939173
sha256
e43896866b8a5e1789c776f490f554aa0f8eb6b1d419ccd3b96be8043c2456e8
sha512
c106e782b44a03448125d419d43480b7350e7451a464de6c5244194b168e4ad395c24e1dca5867b6c50af58295acd870bc25889d0038ea397f357be2c1499cd1
ripemd-160
755d1a9d42393aaa3cc4afb7a0be0ddbb24c462a
Diameter
3982902
Circumference
12512655.663168
Area
12459170316536
Volume
3.3082436248048E+19
Surface area
49836681266144
Circumference
12512655.663168
Perimeter
7965804
Area
3965877085401
Diagonal
2816337.0130015
Surface area
23795262512406
Volume
7897849887598906851
Space diagonal
3449294.3127838
Perimeter
5974353
Area
1717275152121.9
Altitude
1724647.1563919
Surface area
1717275152121.9
Volume
9.3077053538577E+17
Height
938779.00433382