1981105 is an odd 7-digits composite number following 1981104
and preceding 1981106 . In scientific notation, it is written as 1.981105 × 10^6.
The sum of its digits is 25. It has a total of 4 prime factors and 12 positive divisors.
There are 1287264 positive integers (up to 1981105) that are relatively prime to 1981105.
1981105 has 12 divisors, whose sum is 2150064
The reverse of 1981105 is 5011891
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 7
Sum of Digits 25
Digital Root 7
Name
one million nine hundred eighty-one thousand one hundred five
Scientific notation
1.981105 × 10^6
Engineering notation
1.981105 × 10^6
Prime Factorization
35 × 23 × 23 × 107
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
86135
Product of the distinct prime numbers
The prime factorization of 1981105 is 35 × 23 × 23 × 107.
Since it has a total of 4 prime factors.
10 , 9 , 74 , 37 , 277 , 916 , 476 , 2703 , 46547 , 93879 , 116321 , 151243 , 7230992 , 2907507 , 8214359 , 62039261 , 778799789 , 448731163 , 1273013796 , 8276833296
n×2
3962210
n×3
5943315
n×4
7924420
n×5
9905525
n÷2
990552.5
n÷3
660368.33333333
n÷3
495276.25
n÷5
396221
n2
3924777021025
n3
7775395380237732625
n4
1.5403874664766E+25
n5
3.0516693117741E+31
2 √n
1407.5173178331
3 √n
125.59407875719
4 √n
37.516893765783
5 √n
18.171111731915
1 , 23 , 35 , 107 , 529 , 805 , 2461 , 3745 , 18515 , 56603 , 86135 , 1981105
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1981104
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1981105 can be divided by 12 positive divisors.
The sum of these divisors (counting 1981105) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
111100011101010110001
3
Ternary
10201122120021
4
Quaternary
13203222301
5
Quinary
1001343410
6
Senary
110243441
8
Octal
7435261
10
Decimal
1981105
12
Duodecimal
7b6581
16
Hexadecimal
1e3ab1
20
Vigesimal
c7cf5
36
Base36
16gmp
md5
3b209c27b0c1508cae264af0167425ba
sha1
9ceb009bd11ba54aa6cd3710e78a542590bcfe24
sha256
41cae4a9433c62b3b108f262a71602ec77810f61a7413d9a56654789db8dd7fd
sha512
40aba176b3a06b08a7c56af2085831900940a027e9c6be4b000df5d878e4d36d253a8aa91abc059a46a57aee6a56c47b754e413f8bbb09a4b0ceea8e913005e7
ripemd-160
4f7bfac25a9461898a042ba69b5e3ece48eb3b92
Diameter
3962210
Circumference
12447649.82798
Area
12330050656230
Volume
3.2569500007081E+19
Surface area
49320202624921
Circumference
12447649.82798
Perimeter
7924420
Area
3924777021025
Diagonal
2801705.5594852
Surface area
23548662126150
Volume
7775395380237732625
Space diagonal
3431374.5151287
Perimeter
5943315
Area
1699478302198.5
Altitude
1715687.2575644
Surface area
1699478302198.5
Volume
9.1633913329544E+17
Height
933901.85316172