1991497 is an odd 7-digits composite number following 1991496
and preceding 1991498 . In scientific notation, it is written as 1.991497 × 10^6.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 1988560 positive integers (up to 1991497) that are relatively prime to 1991497.
1991497 has 4 divisors, whose sum is 1994436
The reverse of 1991497 is 7941991
Previous prime number is 1061
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 40
Digital Root 4
Name
one million nine hundred ninety-one thousand four hundred ninety-seven
Scientific notation
1.991497 × 10^6
Engineering notation
1.991497 × 10^6
Prime Factorization
1061 × 1877
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1991497
Product of the distinct prime numbers
The prime factorization of 1991497 is 1061 × 1877.
Since it has a total of 2 prime factors.
4 , 2 , 26 , 97 , 802 , 558 , 8704 , 4438 , 93304 , 85381 , 691293 , 788617 , 7690840 , 2824969 , 94667135 , 61205852 , 884500305 , 909311745 , 9907809862 , 4629361606
n×2
3982994
n×3
5974491
n×4
7965988
n×5
9957485
n÷2
995748.5
n÷3
663832.33333333
n÷3
497874.25
n÷5
398299.4
n2
3966060301009
n3
7898397191278520473
n4
1.572963431124E+25
n5
3.1325519541931E+31
2 √n
1411.204095799
3 √n
125.813299541
4 √n
37.565996536749
5 √n
18.190135379762
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
-1991496
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 1991497 can be divided by 4 positive divisors.
The sum of these divisors (counting 1991497) is 1, the average is 0.25.
Base
System
Value
2
Binary
111100110001101001001
3
Ternary
10202011211011
4
Quaternary
13212031021
5
Quinary
1002211442
6
Senary
110403521
8
Octal
7461511
10
Decimal
1991497
12
Duodecimal
8005a1
16
Hexadecimal
1e6349
20
Vigesimal
c8ieh
36
Base36
16ond
md5
f97ecdeba8a760318c390688c2379986
sha1
0bb051d903ed4afd347fc49066b92a6d480a9e9b
sha256
3f8421041b5e2f236b5ebd1f4bfa657be2b6750a10328339fe754c3a27ed4d49
sha512
ce66bfe3cfee583a0a5eedf7d785724097055be9562ce5b0e3314e553872efe5318d9d1d95f67bb312c0cb27cec9eb2d82646e9c36f25b4ecbe5088951c8cc8b
ripemd-160
11e2c33bd9aee73ba8620f5c08c0a633df4e4e7a
Diameter
3982994
Circumference
12512944.689692
Area
12459745905344
Volume
3.308472878834E+19
Surface area
49838983621376
Circumference
12512944.689692
Perimeter
7965988
Area
3966060301009
Diagonal
2816402.0668253
Surface area
23796361806054
Volume
7898397191278520473
Space diagonal
3449373.987121
Perimeter
5974491
Area
1717354486807.4
Altitude
1724686.9935605
Surface area
1717354486807.4
Volume
9.3083503574297E+17
Height
938800.68894178