12987657 is an odd 8-digits composite number following 12987656
and preceding 12987658 . In scientific notation, it is written as 1.2987657 × 10^7.
The sum of its digits is 45. It has a total of 2 prime factors and 4 positive divisors.
There are 8658432 positive integers (up to 12987657) that are relatively prime to 12987657.
12987657 has 4 divisors, whose sum is 14430740
The reverse of 12987657 is 75678921
Previous prime number is 9
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
twelve million nine hundred eighty-seven thousand six hundred fifty-seven
Scientific notation
1.2987657 × 10^7
Engineering notation
1.2987657 × 10^6
Prime Factorization
9 × 1443073
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
12987657
Product of the distinct prime numbers
The prime factorization of 12987657 is 9 × 1443073.
Since it has a total of 2 prime factors.
4 , 3 , 20 , 92 , 348 , 258 , 9588 , 8453 , 85945 , 26889 , 828250 , 122504 , 3086767 , 1457000 , 38772179 , 14110019 , 376435590 , 424106443 , 584755526 , 9063670874
n×2
25975314
n×3
38962971
n×4
51950628
n×5
64938285
n÷2
6493828.5
n÷3
4329219
n÷3
3246914.25
n÷5
2597531.4
n2
168679234349649
n3
2.1907480387559E+21
n4
2.8452684100784E+28
n5
3.6953370183033E+35
2 √n
3603.8392028502
3 √n
235.05902847937
4 √n
60.031984831839
5 √n
26.467088045495
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
-12987656
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 12987657 can be divided by 4 positive divisors.
The sum of these divisors (counting 12987657) is 1, the average is 0.25.
Base
System
Value
2
Binary
110001100010110100001001
3
Ternary
220102211201100
4
Quaternary
301202310021
5
Quinary
11311101112
6
Senary
1142212013
8
Octal
61426411
10
Decimal
12987657
12
Duodecimal
4424009
16
Hexadecimal
c62d09
20
Vigesimal
41392h
36
Base36
7qdc9
md5
434d476ba1ea9ecb25309948f6feda76
sha1
07d3404adf334f51373b551309ba32e9e7f5f976
sha256
9bceb936b181f57b6119963e2cc08ca226a9358d86b03ce0243011b104b5b033
sha512
96c95460d561e65ca74ff049623afc3b7be2e0087c2b244d3e57ecc7b9bd56287104186dddc4c78f1df869dd814f25ccaaff2546ed3fe64d30eed10ec12074cd
ripemd-160
e7d01c627ddc236fdb72a478be96a295ae650364
Diameter
25975314
Circumference
81603855.637088
Area
5.2992144344601E+14
Volume
9.1765839258955E+21
Surface area
2.119685773784E+15
Circumference
81603855.637088
Perimeter
51950628
Area
168679234349649
Diagonal
18367320.67285
Surface area
1012075406097894
Volume
2.1907480387559E+21
Space diagonal
22495281.795278
Perimeter
38962971
Area
73040251018852
Altitude
11247640.897639
Surface area
73040251018852
Volume
2.581821323459E+20
Height
6122440.2242833