30943987 is an odd 8-digits composite number following 30943986
and preceding 30943988 . In scientific notation, it is written as 3.0943987 × 10^7.
The sum of its digits is 43. It has a total of 2 prime factors and 4 positive divisors.
There are 30922720 positive integers (up to 30943987) that are relatively prime to 30943987.
30943987 has 4 divisors, whose sum is 30965256
The reverse of 30943987 is 78934903
Previous prime number is 1571
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
thirty million nine hundred forty-three thousand nine hundred eighty-seven
Scientific notation
3.0943987 × 10^7
Engineering notation
3.0943987 × 10^6
Prime Factorization
1571 × 19697
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
30943987
Product of the distinct prime numbers
The prime factorization of 30943987 is 1571 × 19697.
Since it has a total of 2 prime factors.
3 , 5 , 11 , 40 , 366 , 404 , 6400 , 6448 , 50908 , 90364 , 789909 , 897401 , 2373401 , 8150325 , 24243303 , 22021849 , 801595649 , 399629547 , 6378703690 , 6697784573
n×2
61887974
n×3
92831961
n×4
123775948
n×5
154719935
n÷2
15471993.5
n÷3
10314662.333333
n÷3
7735996.75
n÷5
6188797.4
n2
957530331456169
n3
2.9629806128685E+22
n4
9.1686433565856E+29
n5
2.8371438083382E+37
2 √n
5562.7319726911
3 √n
313.94874885324
4 √n
74.583724583123
5 √n
31.485837810737
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
-30943986
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 30943987 can be divided by 4 positive divisors.
The sum of these divisors (counting 30943987) is 1, the average is 0.25.
Base
System
Value
2
Binary
1110110000010101011110011
3
Ternary
2011020010011121
4
Quaternary
1312002223303
5
Quinary
30410201422
6
Senary
3023123111
8
Octal
166025363
10
Decimal
30943987
12
Duodecimal
a443497
16
Hexadecimal
1d82af3
20
Vigesimal
9d7jj7
36
Base36
if8j7
md5
a8b87e9d37e18ab4cf6b1209de532c23
sha1
73c76e8a4fb5165707bb7587d80c0c6e92c35cf9
sha256
60d980a8b6c54b519f4ad2ef8e46f43d4dd1f54515536f6c2c746fba0b93c3d1
sha512
64668b4327c01f22d2085d51184878dc94493091c6992595306f4eed63ae79c1d6dd060bc46e9628696f939e833e4fba0e59fe9b2b155c836920f671222fb3b9
ripemd-160
355329f262e0f16d35ae7c004df54c3c223ea03a
Diameter
61887974
Circumference
194426804.46396
Area
3.0081702548921E+15
Volume
1.2411304168156E+23
Surface area
1.2032681019568E+16
Circumference
194426804.46396
Perimeter
123775948
Area
957530331456169
Diagonal
43761406.089297
Surface area
5745181988737014
Volume
2.9629806128685E+22
Space diagonal
53596557.672751
Perimeter
92831961
Area
4.1462279596759E+14
Altitude
26798278.836375
Surface area
4.1462279596759E+14
Volume
3.491906139806E+21
Height
14587135.363099