12987730 is an even 8-digits composite number following 12987729
and preceding 12987731 . In scientific notation, it is written as 1.2987730 × 10^7.
The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors.
There are 4452912 positive integers (up to 12987730) that are relatively prime to 12987730.
12987730 has 8 divisors, whose sum is 20038320
The reverse of 12987730 is 03778921
Previous prime number is 35
Is Prime? no
Number parity even
Number length 8
Sum of Digits 37
Digital Root 1
Name
twelve million nine hundred eighty-seven thousand seven hundred thirty
Scientific notation
1.2987730 × 10^7
Engineering notation
1.2987730 × 10^6
Prime Factorization
2 × 35 × 185539
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12987730
Product of the distinct prime numbers
The prime factorization of 12987730 is 2 × 35 × 185539.
Since it has a total of 3 prime factors.
2 , 2 , 93 , 90 , 330 , 734 , 1526 , 2163 , 88787 , 9017 , 73208 , 291235 , 418069 , 3289178 , 57566610 , 34760844 , 133116717 , 837593696 , 1993100972 , 8944818436
n×2
25975460
n×3
38963190
n×4
51950920
n×5
64938650
n÷2
6493865
n÷3
4329243.3333333
n÷3
3246932.5
n÷5
2597546
n2
168681130552900
n3
2.1907849797158E+21
n4
2.8453323804604E+28
n5
3.6954408717678E+35
2 √n
3603.8493309238
3 √n
235.05946887897
4 √n
60.032069187425
5 √n
26.467117798253
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
-12987729
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 12987730 can be divided by 8 positive divisors.
The sum of these divisors (counting 12987730) is 1, the average is 0.125.
Base
System
Value
2
Binary
110001100010110101010010
3
Ternary
220102211211001
4
Quaternary
301202311102
5
Quinary
11311101410
6
Senary
1142212214
8
Octal
61426522
10
Decimal
12987730
12
Duodecimal
442406a
16
Hexadecimal
c62d52
20
Vigesimal
41396a
36
Base36
7qdea
md5
2481b0c1ba63ffc56ddb5e61d0f0bed5
sha1
6a2a3b562975f11dda0aa7f922398df38a58aec6
sha256
a270865b4d7305b32de6d2e950285847160296bb71aedc65f2bab10c8a1b9ad3
sha512
7fd8c09a6c274d2b8517b102508e422af79fafda69ec008247b2e55c3e98e85498350b070cd8e050154c5780231df0b4b4ad80e4fb90351813ed80d3aec579ec
ripemd-160
293ac0ff378da01bbe9b23df4a5f634b1a428f59
Diameter
25975460
Circumference
81604314.309616
Area
5.2992740054421E+14
Volume
9.1767386638268E+21
Surface area
2.1197096021768E+15
Circumference
81604314.309616
Perimeter
51950920
Area
168681130552900
Diagonal
18367423.91044
Surface area
1012086783317400
Volume
2.1907849797158E+21
Space diagonal
22495408.234987
Perimeter
38963190
Area
73041072098945
Altitude
11247704.117493
Surface area
73041072098945
Volume
2.5818648587978E+20
Height
6122474.6368133