1981497 is an odd 7-digits composite number following 1981496
and preceding 1981498 . In scientific notation, it is written as 1.981497 × 10^6.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 1123200 positive integers (up to 1981497) that are relatively prime to 1981497.
1981497 has 8 divisors, whose sum is 2092552
The reverse of 1981497 is 7941891
Previous prime number is 157
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 39
Digital Root 3
Name
one million nine hundred eighty-one thousand four hundred ninety-seven
Scientific notation
1.981497 × 10^6
Engineering notation
1.981497 × 10^6
Prime Factorization
21 × 157 × 601
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1981497
Product of the distinct prime numbers
The prime factorization of 1981497 is 21 × 157 × 601.
Since it has a total of 3 prime factors.
3 , 1 , 47 , 18 , 324 , 426 , 2028 , 1396 , 32743 , 44471 , 190865 , 318888 , 8207014 , 285349 , 32500391 , 75715825 , 150406661 , 589545629 , 5991223843 , 6602235895
n×2
3962994
n×3
5944491
n×4
7925988
n×5
9907485
n÷2
990748.5
n÷3
660499
n÷3
495374.25
n÷5
396299.4
n2
3926330361009
n3
7780011831348250473
n4
1.5416070103781E+25
n5
3.0546896662432E+31
2 √n
1407.6565632284
3 √n
125.60236195134
4 √n
37.518749489134
5 √n
18.171830776295
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
-1981496
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 1981497 can be divided by 8 positive divisors.
The sum of these divisors (counting 1981497) is 1, the average is 0.125.
Base
System
Value
2
Binary
111100011110000111001
3
Ternary
10201200002210
4
Quaternary
13203300321
5
Quinary
1001401442
6
Senary
110245333
8
Octal
7436071
10
Decimal
1981497
12
Duodecimal
7b6849
16
Hexadecimal
1e3c39
20
Vigesimal
c7deh
36
Base36
16gxl
md5
cd9cfd212ba8bcbc455ccb5511c5590b
sha1
6171626b5fef763bff0199273221dde310f25c1a
sha256
607edbeb063309ea2bedd81724785b1c82fabc0a6d6cb87af79a3a428bb8d807
sha512
87b36838cd4b6e441b4b49b7107993cf7cd3de740727836b507f859025e266e189972d17a29ac8747d7567e6261887e737b95d3544874ec77ebe1901490dffad
ripemd-160
9006f1c6e814da2a1bb21aaadbaa53cf88d5273f
Diameter
3962994
Circumference
12450112.83662
Area
12334930617712
Volume
3.2588837352274E+19
Surface area
49339722470850
Circumference
12450112.83662
Perimeter
7925988
Area
3926330361009
Diagonal
2802259.9312016
Surface area
23557982166054
Volume
7780011831348250473
Space diagonal
3432053.4790453
Perimeter
5944491
Area
1700150918142
Altitude
1716026.7395227
Surface area
1700150918142
Volume
9.1688318727632E+17
Height
934086.64373387