1991495 is an odd 7-digits composite number following 1991494
and preceding 1991496 . In scientific notation, it is written as 1.991495 × 10^6.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 1448320 positive integers (up to 1991495) that are relatively prime to 1991495.
1991495 has 8 divisors, whose sum is 2607120
The reverse of 1991495 is 5941991
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 38
Digital Root 2
Name
one million nine hundred ninety-one thousand four hundred ninety-five
Scientific notation
1.991495 × 10^6
Engineering notation
1.991495 × 10^6
Prime Factorization
5 × 11 × 36209
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1991495
Product of the distinct prime numbers
The prime factorization of 1991495 is 5 × 11 × 36209.
Since it has a total of 3 prime factors.
5 , 4 , 90 , 63 , 138 , 749 , 2166 , 599 , 97242 , 38138 , 684071 , 324986 , 3293586 , 8850049 , 785660 , 13060685 , 892087265 , 792745152 , 7561603995 , 7241139329
n×2
3982990
n×3
5974485
n×4
7965980
n×5
9957475
n÷2
995747.5
n÷3
663831.66666667
n÷3
497873.75
n÷5
398299
n2
3966052335025
n3
7898373394940612375
n4
1.5729571124157E+25
n5
3.1325362245904E+31
2 √n
1411.2033871841
3 √n
125.81325742416
4 √n
37.565987105148
5 √n
18.1901317262
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
-1991494
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 1991495 can be divided by 8 positive divisors.
The sum of these divisors (counting 1991495) is 1, the average is 0.125.
Base
System
Value
2
Binary
111100110001101000111
3
Ternary
10202011211002
4
Quaternary
13212031013
5
Quinary
1002211440
6
Senary
110403515
8
Octal
7461507
10
Decimal
1991495
12
Duodecimal
80059b
16
Hexadecimal
1e6347
20
Vigesimal
c8ief
36
Base36
16onb
md5
53ac09d8d7925394012e405af6652238
sha1
852a6a7cdd3a5361a6191a17fc2ef0314b00cd9e
sha256
29febbab7a3b86cc83460eb7c723ae25342f46923b7921d3b593923ed3301476
sha512
8dcb059d6bf101bc65e69a6e338bad5518510de0e9d9efae9854132a412692c96aaebb49da60e3c16d2889c0bd3e5500f53c6bdfd0c6341a575ba177b5eee463
ripemd-160
8b2f161d8a9f1cb957ea856b0053561a2bc5c2c6
Diameter
3982990
Circumference
12512932.123322
Area
12459720879467
Volume
3.3084629110473E+19
Surface area
49838883517869
Circumference
12512932.123322
Perimeter
7965980
Area
3966052335025
Diagonal
2816399.2383982
Surface area
23796314010150
Volume
7898373394940612375
Space diagonal
3449370.5230194
Perimeter
5974485
Area
1717351037435.1
Altitude
1724685.2615097
Surface area
1717351037435.1
Volume
9.3083223131765E+17
Height
938799.74613274