13531981 is an odd 8-digits composite number following 13531980
and preceding 13531982 . In scientific notation, it is written as 1.3531981 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 12943612 positive integers (up to 13531981) that are relatively prime to 13531981.
13531981 has 4 divisors, whose sum is 14120352
The reverse of 13531981 is 18913531
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
thirteen million five hundred thirty-one thousand nine hundred eighty-one
Scientific notation
1.3531981 × 10^7
Engineering notation
1.3531981 × 10^6
Prime Factorization
23 × 588347
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
13531981
Product of the distinct prime numbers
The prime factorization of 13531981 is 23 × 588347.
Since it has a total of 2 prime factors.
1 , 3 , 71 , 51 , 3 , 617 , 6398 , 2471 , 3786 , 35351 , 349053 , 533826 , 8576193 , 2241553 , 95844945 , 31787205 , 199208884 , 610599362 , 5777109557 , 8663626871
n×2
27063962
n×3
40595943
n×4
54127924
n×5
67659905
n÷2
6765990.5
n÷3
4510660.3333333
n÷3
3382995.25
n÷5
2706396.2
n2
183114509784361
n3
2.4779020672263E+21
n4
3.3530923693567E+28
n5
4.537398223338E+35
2 √n
3678.5841026134
3 √n
238.29803423077
4 √n
60.651332241043
5 √n
26.685311447112
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
-13531980
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 13531981 can be divided by 4 positive divisors.
The sum of these divisors (counting 13531981) is 1, the average is 0.25.
Base
System
Value
2
Binary
110011100111101101001101
3
Ternary
221110111101111
4
Quaternary
303213231031
5
Quinary
11431010411
6
Senary
1202012021
8
Octal
63475515
10
Decimal
13531981
12
Duodecimal
4647011
16
Hexadecimal
ce7b4d
20
Vigesimal
44b9j1
36
Base36
821cd
md5
6791f2ffa95873cec0f89b6d9ed00614
sha1
469ce1046cc19fa9c3cfc18764604b6a7ca1f0cd
sha256
b34924a6479beff71397c7caa7ac0fac19ab53d6a878758654f1e8904668b16d
sha512
77597a7521edad0bd62b8f58e9927d0e30569a0d6b5c31ac3c48fc63a56a8f22a32731864bef44e937745d40671917282472750277548e4ae1618aa79df9bfbb
ripemd-160
62d8ddb87d1b16a6fa0d3b0f33653399450abd1d
Diameter
27063962
Circumference
85023944.196233
Area
5.7527119870424E+14
Volume
1.0379411907617E+22
Surface area
2.301084794817E+15
Circumference
85023944.196233
Perimeter
54127924
Area
183114509784361
Diagonal
19137111.055975
Surface area
1098687058706166
Volume
2.4779020672263E+21
Space diagonal
23438078.619057
Perimeter
40595943
Area
79290908637395
Altitude
11719039.309528
Surface area
79290908637395
Volume
2.9202355914198E+20
Height
6379037.0186583