1213231391 is an odd 10-digits composite number following 1213231390
and preceding 1213231392 . In scientific notation, it is written as 1.213231391 × 10^9.
The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors.
There are 1206453384 positive integers (up to 1213231391) that are relatively prime to 1213231391.
1213231391 has 4 divisors, whose sum is 1220009400
The reverse of 1213231391 is 1931323121
Previous prime number is 179
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 26
Digital Root 8
Name
one billion two hundred thirteen million two hundred thirty-one thousand three hundred ninety-one
Scientific notation
1.213231391 × 10^9
Engineering notation
1.213231391 × 10^9
Prime Factorization
179 × 6777829
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
1213231391
Product of the distinct prime numbers
The prime factorization of 1213231391 is 179 × 6777829.
Since it has a total of 2 prime factors.
10 , 9 , 35 , 94 , 430 , 258 , 8997 , 7814 , 54336 , 40893 , 31625 , 34878 , 4841624 , 7554436 , 85714506 , 18381951 , 54769421 , 882392960 , 8930804688 , 8181437763
n×2
2426462782
n×3
3639694173
n×4
4852925564
n×5
6066156955
n÷2
606615695.5
n÷3
404410463.66667
n÷3
303307847.75
n÷5
242646278.2
n2
1471930408107794881
n3
1.7857921764838E+27
n4
2.1665791263124E+36
n5
2.6285618071275E+45
2 √n
34831.4712724
3 √n
1066.5499824293
4 √n
186.63191386363
5 √n
65.582614738635
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
-1213231390
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 1213231391 can be divided by 4 positive divisors.
The sum of these divisors (counting 1213231391) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001000010100000111000100011111
3
Ternary
10010112220112120222
4
Quaternary
1020110013010133
5
Quinary
4441041401031
6
Senary
320215431555
8
Octal
11024070437
10
Decimal
1213231391
12
Duodecimal
29a3855bb
16
Hexadecimal
4850711f
20
Vigesimal
ij2di9b
36
Base36
k2brbz
md5
9b983b03e556bb5b6d12b63c4595d94b
sha1
c28d1e2473d592e8055d2eb023db87864fbff798
sha256
eb876ab6c65aea3058f2ca9863001393aeb7f668ca183afcd790bd9b8c690011
sha512
05581f92e221287224e60f2032cc64787515927dd5e73a815009971d70c8127cdfcda4211a4e414fe2ffcb211a1a5d3bd9482bcfb21aa7008c509c2ebb8d0a56
ripemd-160
81528811cca74a291eb87cfea0cbbf5ffd1d5849
Diameter
2426462782
Circumference
7622957650.1403
Area
4.6242057567069E+18
Volume
7.4803087766396E+27
Surface area
1.8496823026827E+19
Circumference
7622957650.1403
Perimeter
4852925564
Area
1471930408107794881
Diagonal
1715768287.449
Surface area
8831582448646769286
Volume
1.7857921764838E+27
Space diagonal
2101378410.5495
Perimeter
3639694173
Area
6.3736456301207E+17
Altitude
1050689205.2747
Surface area
6.3736456301207E+17
Volume
2.1045762629693E+26
Height
571922762.48299