12542839 is an odd 8-digits prime number following 12542838
and preceding 12542840 . In scientific notation, it is written as 1.2542839 × 10^7.
The sum of its digits is 34. It has a total of 1 prime factors and 2 positive divisors.
There are 12542838 positive integers (up to 12542839) that are relatively prime to 12542839.
12542839 has 2 divisors, whose sum is 12542840
The reverse of 12542839 is 93824521
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twelve million five hundred forty-two thousand eight hundred thirty-nine
Scientific notation
1.2542839 × 10^7
Engineering notation
1.2542839 × 10^6
Prime Factorization
12542839
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
12542839
Product of the distinct prime numbers
The prime factorization of 12542839 is 12542839.
Since it has a total of 1 prime factors.
3 , 9 , 78 , 78 , 4 , 646 , 2045 , 1726 , 90746 , 77583 , 17784 , 721633 , 8126215 , 9242373 , 33701193 , 66269232 , 52690746 , 595681036 , 5598261592 , 2305586500
n×2
25085678
n×3
37628517
n×4
50171356
n×5
62714195
n÷2
6271419.5
n÷3
4180946.3333333
n÷3
3135709.75
n÷5
2508567.8
n2
157322810179921
n3
1.9732746791143E+21
n4
2.4750466602907E+28
n5
3.1044111777515E+35
2 √n
3541.5870736154
3 √n
232.34426075378
4 √n
59.511234852047
5 √n
26.283256267428
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
12542840
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
6271420
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
3541.5872147951
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999998405465
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 12542839 can be divided by 2 positive divisors.
The sum of these divisors (counting 12542839) is 12542840, the average is 6271420.
Base
System
Value
2
Binary
101111110110001101110111
3
Ternary
212121020112121
4
Quaternary
233312031313
5
Quinary
11202332324
6
Senary
1124500411
8
Octal
57661567
10
Decimal
12542839
12
Duodecimal
424a707
16
Hexadecimal
bf6377
20
Vigesimal
3i7h1j
36
Base36
7gu47
md5
b8732627ed2221714a26203f89d51f63
sha1
ca18c4835be9213ec05fe41f13e55d0ddb03b68b
sha256
24fd735fa9f7684e166d3c9dc221d0ed3d1f6410916438cc32095cef8b9c4ac8
sha512
af253ef08872e2599a569389c176532166e51f04619c298d0a4567c934367559bfcb4ac7be8e072bbf8b35f27a88a914d561354ad73f686a0a54a2b56f468b31
ripemd-160
16579a9023efbf889d93c6c60d38bcb10b22f281
Diameter
25085678
Circumference
78808981.715119
Area
4.9424418470334E+14
Volume
8.265633647227E+21
Surface area
1.9769767388134E+15
Circumference
78808981.715119
Perimeter
50171356
Area
157322810179921
Diagonal
17738253.024462
Surface area
943936861079526
Volume
1.9732746791143E+21
Space diagonal
21724834.419156
Perimeter
37628517
Area
68122775105284
Altitude
10862417.209578
Surface area
68122775105284
Volume
2.3255265112424E+20
Height
5912751.0081541