1218391013 is an odd 10-digits composite number following 1218391012
and preceding 1218391014 . In scientific notation, it is written as 1.218391013 × 10^9.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 1044335148 positive integers (up to 1218391013) that are relatively prime to 1218391013.
1218391013 has 4 divisors, whose sum is 1392446880
The reverse of 1218391013 is 3101938121
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 29
Digital Root 2
Name
one billion two hundred eighteen million three hundred ninety-one thousand thirteen
Scientific notation
1.218391013 × 10^9
Engineering notation
1.218391013 × 10^9
Prime Factorization
7 × 174055859
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1218391013
Product of the distinct prime numbers
The prime factorization of 1218391013 is 7 × 174055859.
Since it has a total of 2 prime factors.
8 , 3 , 70 , 45 , 878 , 361 , 6733 , 6659 , 88146 , 39554 , 196417 , 925442 , 5295228 , 9383783 , 25729380 , 65022841 , 415607047 , 672785129 , 2173323644 , 7766111544
n×2
2436782026
n×3
3655173039
n×4
4873564052
n×5
6091955065
n÷2
609195506.5
n÷3
406130337.66667
n÷3
304597753.25
n÷5
243678202.6
n2
1484476660559166169
n3
1.8086730222335E+27
n4
2.2036709557449E+36
n5
2.6849328880887E+45
2 √n
34905.458212148
3 √n
1068.0597829342
4 √n
186.83002492145
5 √n
65.638301945905
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
-1218391012
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 1218391013 can be divided by 4 positive divisors.
The sum of these divisors (counting 1218391013) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001000100111110010101111100101
3
Ternary
10010220121200021002
4
Quaternary
1020213302233211
5
Quinary
4443402003023
6
Senary
320522203045
8
Octal
11047625745
10
Decimal
1218391013
12
Duodecimal
2a0053485
16
Hexadecimal
489f2be5
20
Vigesimal
j0eihad
36
Base36
k5ecit
md5
b8a4e016db7503675b767b53fff2cba2
sha1
90333a14ed195fc08d6565a21535b6a9d689f8de
sha256
206d1237337f916a9a0d21812197ad9e26c30cfb15ace247b9e5c7674fd07b0a
sha512
8393d0905d5d004a7e0000d6e3692fb185f28f3ebae55f4584f38e4071a116dca7e9d1275e25542dc13438c2b72ab7c27e88d54d785ad2c41e07f27b5f314e69
ripemd-160
6dde30d382f99f8439e2ef1332a13f4705f6956a
Diameter
2436782026
Circumference
7655376511.2813
Area
4.6636209712382E+18
Volume
7.5761518391932E+27
Surface area
1.8654483884953E+19
Circumference
7655376511.2813
Perimeter
4873564052
Area
1484476660559166169
Diagonal
1723065094.8581
Surface area
8906859963354997014
Volume
1.8086730222335E+27
Space diagonal
2110315138.0013
Perimeter
3655173039
Area
6.4279724968466E+17
Altitude
1055157569.0007
Surface area
6.4279724968466E+17
Volume
2.1315415982842E+26
Height
574355031.61936