1981862 is an even 7-digits composite number following 1981861
and preceding 1981863 . In scientific notation, it is written as 1.981862 × 10^6.
The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors.
There are 983664 positive integers (up to 1981862) that are relatively prime to 1981862.
1981862 has 8 divisors, whose sum is 2994600
The reverse of 1981862 is 2681891
Previous prime number is 139
Is Prime? no
Number parity even
Number length 7
Sum of Digits 35
Digital Root 8
Name
one million nine hundred eighty-one thousand eight hundred sixty-two
Scientific notation
1.981862 × 10^6
Engineering notation
1.981862 × 10^6
Prime Factorization
2 × 139 × 7129
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1981862
Product of the distinct prime numbers
The prime factorization of 1981862 is 2 × 139 × 7129.
Since it has a total of 3 prime factors.
2 , 5 , 55 , 87 , 60 , 435 , 1766 , 7677 , 48167 , 63997 , 454643 , 31257 , 2422431 , 2471840 , 65701948 , 76628585 , 601445135 , 526083339 , 1248770889 , 2429971227
n×2
3963724
n×3
5945586
n×4
7927448
n×5
9909310
n÷2
990931
n÷3
660620.66666667
n÷3
495465.5
n÷5
396372.4
n2
3927776987044
n3
7784311955096995928
n4
1.5427432059952E+25
n5
3.0575041357201E+31
2 √n
1407.7862053593
3 √n
125.61007363724
4 √n
37.520477147277
5 √n
18.172500192356
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
-1981861
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 1981862 can be divided by 8 positive divisors.
The sum of these divisors (counting 1981862) is 1, the average is 0.125.
Base
System
Value
2
Binary
111100011110110100110
3
Ternary
10201200121022
4
Quaternary
13203312212
5
Quinary
1001404422
6
Senary
110251142
8
Octal
7436646
10
Decimal
1981862
12
Duodecimal
7b6ab2
16
Hexadecimal
1e3da6
20
Vigesimal
c7ed2
36
Base36
16h7q
md5
e499b2ccde17e725f9be0c88a08f4c4c
sha1
73c6a71744a61f4963863520074411894e4695b9
sha256
76fc1e6aa610678c7c686f22a6b6cd2814ac116ac15964af166317d195b44a42
sha512
6e3d384f9a97737b7a4fa20c42513d15c3bf44a7e8b28c88dee8effced57106b68eafd4e30d6063610a9146c84381ac637cf7fd6cc415fab06e8ea3a59457a90
ripemd-160
830a6492bbd64045a7be7c93d469079627d253dd
Diameter
3963724
Circumference
12452406.199258
Area
12339475327436
Volume
3.2606849668512E+19
Surface area
49357901309746
Circumference
12452406.199258
Perimeter
7927448
Area
3927776987044
Diagonal
2802776.1191519
Surface area
23566661922264
Volume
7784311955096995928
Space diagonal
3432685.6775901
Perimeter
5945586
Area
1700777325590
Altitude
1716342.838795
Surface area
1700777325590
Volume
9.173899617201E+17
Height
934258.70638396