1991331 is an odd 7-digits composite number following 1991330
and preceding 1991332 . In scientific notation, it is written as 1.991331 × 10^6.
The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors.
There are 1315080 positive integers (up to 1991331) that are relatively prime to 1991331.
1991331 has 8 divisors, whose sum is 2084544
The reverse of 1991331 is 1331991
Previous prime number is 131
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 27
Digital Root 9
Name
one million nine hundred ninety-one thousand three hundred thirty-one
Scientific notation
1.991331 × 10^6
Engineering notation
1.991331 × 10^6
Prime Factorization
27 × 131 × 563
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1991331
Product of the distinct prime numbers
The prime factorization of 1991331 is 27 × 131 × 563.
Since it has a total of 3 prime factors.
8 , 6 , 57 , 64 , 19 , 172 , 3723 , 2885 , 79775 , 81708 , 265846 , 906371 , 1584289 , 9001800 , 13696398 , 61651729 , 57097423 , 920969334 , 4206543424 , 6009439682
n×2
3982662
n×3
5973993
n×4
7965324
n×5
9956655
n÷2
995665.5
n÷3
663777
n÷3
497832.75
n÷5
398266.2
n2
3965399151561
n3
7896422257877117691
n4
1.5724390431201E+25
n5
3.1312466121753E+31
2 √n
1411.1452795513
3 √n
125.80980374729
4 √n
37.56521368968
5 √n
18.189832124155
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1991330
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1991331 can be divided by 8 positive divisors.
The sum of these divisors (counting 1991331) is 1, the average is 0.125.
Base
System
Value
2
Binary
111100110001010100011
3
Ternary
10202011121000
4
Quaternary
13212022203
5
Quinary
1002210311
6
Senary
110403043
8
Octal
7461243
10
Decimal
1991331
12
Duodecimal
800483
16
Hexadecimal
1e62a3
20
Vigesimal
c8i6b
36
Base36
16oir
md5
3478a91099c8c0f92fd5b50e14960c31
sha1
e9b80eabeef6acf1d56528ebd94004fa14a9e3b7
sha256
e988c4a149d4593250212ade9ce54d80a2ca32d40004033390caad11e97a1da5
sha512
c57fb0db8dbd4f276e666c803f510fbb751467b0b07331c0460c1527388256fd2ae5c1085c0abfd2e5816ecc1bd814ec6749ed8d46eed20094551956d1273a36
ripemd-160
9d29a2ece44a7fc529073b9844087d1a866c00b2
Diameter
3982662
Circumference
12511901.680931
Area
12457668843095
Volume
3.3076456206653E+19
Surface area
49830675372381
Circumference
12511901.680931
Perimeter
7965324
Area
3965399151561
Diagonal
2816167.307374
Surface area
23792394909366
Volume
7896422257877117691
Space diagonal
3449086.4666869
Perimeter
5973993
Area
1717068200698.5
Altitude
1724543.2333435
Surface area
1717068200698.5
Volume
9.3060228760955E+17
Height
938722.43579133