30949987 is an odd 8-digits composite number following 30949986
and preceding 30949988 . In scientific notation, it is written as 3.0949987 × 10^7.
The sum of its digits is 49. It has a total of 2 prime factors and 4 positive divisors.
There are 30938760 positive integers (up to 30949987) that are relatively prime to 30949987.
30949987 has 4 divisors, whose sum is 30961216
The reverse of 30949987 is 78994903
Previous prime number is 4861
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 49
Digital Root 4
Name
thirty million nine hundred forty-nine thousand nine hundred eighty-seven
Scientific notation
3.0949987 × 10^7
Engineering notation
3.0949987 × 10^6
Prime Factorization
4861 × 6367
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
30949987
Product of the distinct prime numbers
The prime factorization of 30949987 is 4861 × 6367.
Since it has a total of 2 prime factors.
10 , 8 , 79 , 86 , 881 , 789 , 3740 , 8742 , 35431 , 86026 , 605398 , 709332 , 8248668 , 4472725 , 27962702 , 73542394 , 626410289 , 681363756 , 3451439890 , 7921396204
n×2
61899974
n×3
92849961
n×4
123799948
n×5
154749935
n÷2
15474993.5
n÷3
10316662.333333
n÷3
7737496.75
n÷5
6189997.4
n2
957901695300169
n3
2.9647045016818E+22
n4
9.1757565785894E+29
n5
2.8398954682251E+37
2 √n
5563.2712499032
3 √n
313.96903896386
4 √n
74.587339742769
5 √n
31.487058728884
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
-30949986
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 30949987 can be divided by 4 positive divisors.
The sum of these divisors (counting 30949987) is 1, the average is 0.25.
Base
System
Value
2
Binary
1110110000100001001100011
3
Ternary
2011020102101211
4
Quaternary
1312010021203
5
Quinary
30410344422
6
Senary
3023210551
8
Octal
166041143
10
Decimal
30949987
12
Duodecimal
a446a57
16
Hexadecimal
1d84263
20
Vigesimal
9d8ej7
36
Base36
ifd5v
md5
02fac04824e5e0fd4cd39e8baea0aff9
sha1
c3405584930cd8e4e5bcb3badd7c7056ad0c1d20
sha256
6a64b22b15f6f562ae3644949c09bce3a2fc2f822b85da645635d4fe67efd2d0
sha512
089c9a0de7706a55b60dd95b329ec9ea2befbac1721049e34439ba84f7bcd1fed87d1c0cf39b8711567363f5e5366d28b98e1d9c6aac22b061bc2b763f1a957f
ripemd-160
84ece02a41cd634b9d5dbaaca3af808e09741b9c
Diameter
61899974
Circumference
194464503.5758
Area
3.0093369288162E+15
Volume
1.2418525176731E+23
Surface area
1.2037347715265E+16
Circumference
194464503.5758
Perimeter
123799948
Area
957901695300169
Diagonal
43769891.370671
Surface area
5747410171801014
Volume
2.9647045016818E+22
Space diagonal
53606949.977596
Perimeter
92849961
Area
4.1478360122906E+14
Altitude
26803474.988798
Surface area
4.1478360122906E+14
Volume
3.4939377622558E+21
Height
14589963.790224