1213666987 is an odd 10-digits composite number following 1213666986
and preceding 1213666988 . In scientific notation, it is written as 1.213666987 × 10^9.
The sum of its digits is 49. It has a total of 2 prime factors and 4 positive divisors.
There are 1120307976 positive integers (up to 1213666987) that are relatively prime to 1213666987.
1213666987 has 4 divisors, whose sum is 1307026000
The reverse of 1213666987 is 7896663121
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 49
Digital Root 4
Name
one billion two hundred thirteen million six hundred sixty-six thousand nine hundred eighty-seven
Scientific notation
1.213666987 × 10^9
Engineering notation
1.213666987 × 10^9
Prime Factorization
13 × 93358999
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1213666987
Product of the distinct prime numbers
The prime factorization of 1213666987 is 13 × 93358999.
Since it has a total of 2 prime factors.
1 , 4 , 26 , 50 , 923 , 416 , 3029 , 3913 , 79635 , 74965 , 440648 , 460201 , 2520991 , 9617058 , 34768877 , 11058060 , 554312457 , 659363049 , 4747888983 , 7415272834
n×2
2427333974
n×3
3641000961
n×4
4854667948
n×5
6068334935
n÷2
606833493.5
n÷3
404555662.33333
n÷3
303416746.75
n÷5
242733397.4
n2
1472987555333658169
n3
1.7877163681703E+27
n4
2.1696923381678E+36
n5
2.6332839627811E+45
2 √n
34837.723619663
3 √n
1066.6776110965
4 √n
186.64866358928
5 √n
65.587323390755
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
-1213666986
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 1213666987 can be divided by 4 positive divisors.
The sum of these divisors (counting 1213666987) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001000010101110001011010101011
3
Ternary
10010120201200010011
4
Quaternary
1020111301122223
5
Quinary
4441144320422
6
Senary
320233032351
8
Octal
11025613253
10
Decimal
1213666987
12
Duodecimal
29a5556b7
16
Hexadecimal
485716ab
20
Vigesimal
ij58797
36
Base36
k2l3fv
md5
15aed35e81caea0501f66dd8c7acfe0a
sha1
7adc68c80490f4808b43f75e64c89541751e975c
sha256
4ead7d52b4bff6b8368c39f43d0526ef09a9f1781832e49eeffeadc287420fb9
sha512
a79595481a647b37fcda1ddcf0e720e934cfd87211c8adfc5ce84d87a0ff5ccbf2507cb3afa2942774c88e547adaa1fe2f259d7be54d686e2018205903407361
ripemd-160
149ea1b0ab623907103642ec71945956d9b39411
Diameter
2427333974
Circumference
7625694580.5273
Area
4.6275268826654E+18
Volume
7.488368811928E+27
Surface area
1.8510107530662E+19
Circumference
7625694580.5273
Perimeter
4854667948
Area
1472987555333658169
Diagonal
1716384313.2199
Surface area
8837925332001949014
Volume
1.7877163681703E+27
Space diagonal
2102132884.953
Perimeter
3641000961
Area
6.3782232118864E+17
Altitude
1051066442.4765
Surface area
6.3782232118864E+17
Volume
2.106843944619E+26
Height
572128104.40663