30756987 is an odd 8-digits composite number following 30756986
and preceding 30756988 . In scientific notation, it is written as 3.0756987 × 10^7.
The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors.
There are 20003760 positive integers (up to 30756987) that are relatively prime to 30756987.
30756987 has 16 divisors, whose sum is 35020800
The reverse of 30756987 is 78965703
Previous prime number is 127
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
thirty million seven hundred fifty-six thousand nine hundred eighty-seven
Scientific notation
3.0756987 × 10^7
Engineering notation
3.0756987 × 10^6
Prime Factorization
9 × 71 × 127 × 379
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
30756987
Product of the distinct prime numbers
The prime factorization of 30756987 is 9 × 71 × 127 × 379.
Since it has a total of 4 prime factors.
7 , 6 , 45 , 98 , 885 , 507 , 2168 , 8923 , 17329 , 71526 , 457194 , 744927 , 4357049 , 5071217 , 51856436 , 44724756 , 969024450 , 719202649 , 4373680164 , 6345164031
n×2
61513974
n×3
92270961
n×4
123027948
n×5
153784935
n÷2
15378493.5
n÷3
10252329
n÷3
7689246.75
n÷5
6151397.4
n2
945992249318169
n3
2.909587131438E+22
n4
8.9490133577005E+29
n5
2.7524468750562E+37
2 √n
5545.8982139956
3 √n
313.31505464016
4 √n
74.470787655265
5 √n
31.447690586668
1 , 9 , 71 , 127 , 379 , 639 , 1143 , 3411 , 9017 , 26909 , 48133 , 81153 , 242181 , 433197 , 3417443 , 30756987
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
-30756986
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 30756987 can be divided by 16 positive divisors.
The sum of these divisors (counting 30756987) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1110101010101000001111011
3
Ternary
2010212121122200
4
Quaternary
1311111001323
5
Quinary
30333210422
6
Senary
3015121243
8
Octal
165250173
10
Decimal
30756987
12
Duodecimal
a373223
16
Hexadecimal
1d5507b
20
Vigesimal
9c4c97
36
Base36
ib88r
md5
51c9c0e48db0cab93cf91f57d691926e
sha1
915437002fbd47710dbe1108d5447cd5fd9f747e
sha256
26d4647c66499e309cf1d3192cbf3c54cd740623abe25818f09895fd513d8084
sha512
2e7d51a2fab02fe7b994ee1770971ab14be81102f9af90e3b91a093931848780f6df6c1dd93fa7cc4ad753a2dc5c2798756f50a75c7f79d7be416d25d84d55d9
ripemd-160
19a5d452da6d22967f38c7657e8dbd1c51f98d8d
Diameter
61513974
Circumference
193251848.81151
Area
2.9719223008108E+15
Volume
1.218765007614E+23
Surface area
1.1887689203243E+16
Circumference
193251848.81151
Perimeter
123027948
Area
945992249318169
Diagonal
43496948.153133
Surface area
5675953495909014
Volume
2.909587131438E+22
Space diagonal
53272664.171735
Perimeter
92270961
Area
4.0962665984636E+14
Altitude
26636332.085868
Surface area
4.0962665984636E+14
Volume
3.4289813184882E+21
Height
14498982.717711