13045981 is an odd 8-digits composite number following 13045980
and preceding 13045982 . In scientific notation, it is written as 1.3045981 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 11889072 positive integers (up to 13045981) that are relatively prime to 13045981.
13045981 has 8 divisors, whose sum is 14228480
The reverse of 13045981 is 18954031
Previous prime number is 79
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
thirteen million forty-five thousand nine hundred eighty-one
Scientific notation
1.3045981 × 10^7
Engineering notation
1.3045981 × 10^6
Prime Factorization
13 × 79 × 12703
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
13045981
Product of the distinct prime numbers
The prime factorization of 13045981 is 13 × 79 × 12703.
Since it has a total of 3 prime factors.
2 , 6 , 20 , 76 , 873 , 890 , 6733 , 2280 , 95687 , 60660 , 745220 , 617069 , 3174587 , 2101726 , 31110323 , 34800079 , 862233707 , 899170413 , 237600578 , 3545355990
n×2
26091962
n×3
39137943
n×4
52183924
n×5
65229905
n÷2
6522990.5
n÷3
4348660.3333333
n÷3
3261495.25
n÷5
2609196.2
n2
170197620252361
n3
2.2203949200575E+21
n4
2.8967229939567E+28
n5
3.7790593141422E+35
2 √n
3611.922064497
3 √n
235.41036492734
4 √n
60.099268418983
5 √n
26.490816744494
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
-13045980
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 13045981 can be divided by 8 positive divisors.
The sum of these divisors (counting 13045981) is 1, the average is 0.125.
Base
System
Value
2
Binary
110001110001000011011101
3
Ternary
220112210201111
4
Quaternary
301301003131
5
Quinary
11314432411
6
Senary
1143342021
8
Octal
61610335
10
Decimal
13045981
12
Duodecimal
4451911
16
Hexadecimal
c710dd
20
Vigesimal
41aej1
36
Base36
7rmcd
md5
817da9a8889b8ee25c8bf26108f65856
sha1
35fcf6b2fabff18da0d510105f0bd1330dc9ff5b
sha256
79895d20dcec96c4487641aa701c7043e305bedf3e5b125ef0a697971694404b
sha512
a4115cbd1f4dee2677827ee52497c61d9f1b237d7cf5815479f63eb17a1061034ff8d31a4fb36425904b02e723567fbe580c9c362cbf499fabc1cc3e66c12808
ripemd-160
3b07a22c83a27ec6553d067b084d4981ed826f47
Diameter
26091962
Circumference
81970316.136944
Area
5.3469159344328E+14
Volume
9.3007684918944E+21
Surface area
2.1387663737731E+15
Circumference
81970316.136944
Perimeter
52183924
Area
170197620252361
Diagonal
18449803.264662
Surface area
1021185721514166
Volume
2.2203949200575E+21
Space diagonal
22596301.926578
Perimeter
39137943
Area
73697731401101
Altitude
11298150.963289
Surface area
73697731401101
Volume
2.6167605081414E+20
Height
6149934.4215539