1312508721 is an odd 10-digits composite number following 1312508720
and preceding 1312508722 . In scientific notation, it is written as 1.312508721 × 10^9.
The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors.
There are 837260160 positive integers (up to 1312508721) that are relatively prime to 1312508721.
1312508721 has 16 divisors, whose sum is 1826772480
The reverse of 1312508721 is 1278052131
Previous prime number is 89
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 30
Digital Root 3
Name
one billion three hundred twelve million five hundred eight thousand seven hundred twenty-one
Scientific notation
1.312508721 × 10^9
Engineering notation
1.312508721 × 10^9
Prime Factorization
3 × 31 × 89 × 158573
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
1312508721
Product of the distinct prime numbers
The prime factorization of 1312508721 is 3 × 31 × 89 × 158573.
Since it has a total of 4 prime factors.
8 , 8 , 40 , 5 , 4 , 255 , 7673 , 2056 , 4330 , 88104 , 815674 , 103828 , 1492237 , 3778849 , 32647043 , 17377475 , 555038985 , 469331015 , 2127658509 , 1782172008
n×2
2625017442
n×3
3937526163
n×4
5250034884
n×5
6562543605
n÷2
656254360.5
n÷3
437502907
n÷3
328127180.25
n÷5
262501744.2
n2
1722679142701055841
n3
2.2610313982799E+27
n4
2.9676234286972E+36
n5
3.8950316308091E+45
2 √n
36228.562226509
3 √n
1094.8822099689
4 √n
190.3380209693
5 √n
66.622425453865
1 , 3 , 31 , 89 , 93 , 267 , 2759 , 8277 , 158573 , 475719 , 4915763 , 14112997 , 14747289 , 42338991 , 437502907 , 1312508721
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-1312508720
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 1312508721 can be divided by 16 positive divisors.
The sum of these divisors (counting 1312508721) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001110001110110100101100110001
3
Ternary
10101110201100111010
4
Quaternary
1032032310230301
5
Quinary
10142000234341
6
Senary
334123341133
8
Octal
11616645461
10
Decimal
1312508721
12
Duodecimal
3076817a9
16
Hexadecimal
4e3b4b31
20
Vigesimal
10a33bg1
36
Base36
lpfm7l
md5
a86aa77926445b3f22dcfb41a39e0813
sha1
7457e619af419afbe09936496ee7bfd09cb9b6d0
sha256
5073014b5354ab4132d22aeff7142107c28013bddf1d54439b20f728aba3b595
sha512
3b2c40e0df9761d7e8262563f4ddb5fba47563804c25aa5f36c84e7e728242589060e9e85ee8aebcbe0ea717ffad71f01cdf78671384d8f215b162f4a05e80d9
ripemd-160
dea18dfe3a2a9e696c37d7b4e8a39f89d4f140d9
Diameter
2625017442
Circumference
8246735511.3323
Area
5.411956139202E+18
Volume
9.4709861738295E+27
Surface area
2.1647824556808E+19
Circumference
8246735511.3323
Perimeter
5250034884
Area
1722679142701055841
Diagonal
1856167633.9712
Surface area
1.0336074856206E+19
Volume
2.2610313982799E+27
Space diagonal
2273331790.1492
Perimeter
3937526163
Area
7.4594195007436E+17
Altitude
1136665895.0746
Surface area
7.4594195007436E+17
Volume
2.6646510569991E+26
Height
618722544.65706