12815945 is an odd 8-digits composite number following 12815944
and preceding 12815946 . In scientific notation, it is written as 1.2815945 × 10^7.
The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors.
There are 9806896 positive integers (up to 12815945) that are relatively prime to 12815945.
12815945 has 8 divisors, whose sum is 16047936
The reverse of 12815945 is 54951821
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twelve million eight hundred fifteen thousand nine hundred forty-five
Scientific notation
1.2815945 × 10^7
Engineering notation
1.2815945 × 10^6
Prime Factorization
5 × 23 × 111443
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
12815945
Product of the distinct prime numbers
The prime factorization of 12815945 is 5 × 23 × 111443.
Since it has a total of 3 prime factors.
9 , 8 , 95 , 49 , 642 , 929 , 1287 , 4950 , 59458 , 91367 , 75815 , 503001 , 5433501 , 887506 , 97391872 , 23508639 , 919893984 , 222382321 , 5182140843 , 5588289814
n×2
25631890
n×3
38447835
n×4
51263780
n×5
64079725
n÷2
6407972.5
n÷3
4271981.6666667
n÷3
3203986.25
n÷5
2563189
n2
164248446243025
n3
2.1049990533861E+21
n4
2.6977552093248E+28
n5
3.457428238617E+35
2 √n
3579.93645195
3 √n
234.01851096653
4 √n
59.832570159989
5 √n
26.396729802286
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
-12815944
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 12815945 can be divided by 8 positive divisors.
The sum of these divisors (counting 12815945) is 1, the average is 0.125.
Base
System
Value
2
Binary
110000111000111001001001
3
Ternary
220010010011122
4
Quaternary
300320321021
5
Quinary
11240102240
6
Senary
1134405025
8
Octal
60707111
10
Decimal
12815945
12
Duodecimal
4360775
16
Hexadecimal
c38e49
20
Vigesimal
401jh5
36
Base36
7mouh
md5
06dcaefb0b9cade4cea7c2f06cdf5cad
sha1
04c2cc9df42fc98988ece98d4866887a31f4f46a
sha256
cc6b3bdfd49d11094666de60de07d4367fd3d98e2ad7aeb88210be5c4144ecff
sha512
c4dbdefb3b7156058ad671371405c0131f09dededc0467a5641cc93c110b994414877978cbf16ff3acc6c995732855e117930546b9e9ff437988df076144c029
ripemd-160
ddb042b616cf7d1e71fff11c5318b172208518fa
Diameter
25631890
Circumference
80524957.321622
Area
5.1600171208063E+14
Volume
8.8173994159082E+21
Surface area
2.0640068483225E+15
Circumference
80524957.321622
Perimeter
51263780
Area
164248446243025
Diagonal
18124483.233628
Surface area
985490677458150
Volume
2.1049990533861E+21
Space diagonal
22197867.887008
Perimeter
38447835
Area
71121663489291
Altitude
11098933.943504
Surface area
71121663489291
Volume
2.4807651750676E+20
Height
6041494.4112092