30921490 is an even 8-digits composite number following 30921489
and preceding 30921491 . In scientific notation, it is written as 3.0921490 × 10^7.
The sum of its digits is 28. It has a total of 4 prime factors and 16 positive divisors.
There are 12349440 positive integers (up to 30921490) that are relatively prime to 30921490.
30921490 has 16 divisors, whose sum is 55744920
The reverse of 30921490 is 09412903
Previous prime number is 769
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
thirty million nine hundred twenty-one thousand four hundred ninety
Scientific notation
3.0921490 × 10^7
Engineering notation
3.0921490 × 10^6
Prime Factorization
2 × 5 × 769 × 4021
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
30921490
Product of the distinct prime numbers
The prime factorization of 30921490 is 2 × 5 × 769 × 4021.
Since it has a total of 4 prime factors.
10 , 1 , 13 , 8 , 94 , 97 , 782 , 7330 , 51048 , 57475 , 170483 , 360615 , 178767 , 9070855 , 75619433 , 9202694 , 11416352 , 815317955 , 8694638753 , 8223549409
n×2
61842980
n×3
92764470
n×4
123685960
n×5
154607450
n÷2
15460745
n÷3
10307163.333333
n÷3
7730372.5
n÷5
6184298
n2
956138543820100
n3
2.9565228421348E+22
n4
9.1420091497842E+29
n5
2.8268454450496E+37
2 √n
5560.7094871068
3 √n
313.87264772114
4 √n
74.570164859056
5 √n
31.481258291141
1 , 2 , 5 , 10 , 769 , 1538 , 3845 , 4021 , 7690 , 8042 , 20105 , 40210 , 3092149 , 6184298 , 15460745 , 30921490
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
-30921489
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 30921490 can be divided by 16 positive divisors.
The sum of these divisors (counting 30921490) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1110101111101001100010010
3
Ternary
2011011222022101
4
Quaternary
1311331030102
5
Quinary
30403441430
6
Senary
3022431014
8
Octal
165751422
10
Decimal
30921490
12
Duodecimal
a43246a
16
Hexadecimal
1d7d312
20
Vigesimal
9d53ea
36
Base36
ier6a
md5
fb4c1f675989e6ca718a30d630772bba
sha1
9410fdf77eec7b3c295acf235cb678ca8c8a0252
sha256
96beacc90164370e3f63a8fec6abdc32bce076370e507188dd793f26cd41809f
sha512
1939ce833b4121f2024a61c4162e704f0af38e3ed359f6b682120745b824856d115f0974000406f2aa2bc80d4a2e9dd5d4602ca7ddec17ebef48e9a5d7ae07a8
ripemd-160
10eb7f9e4cc9b76fbb98aa3b5aad00d7efe74409
Diameter
61842980
Circumference
194285451.6441
Area
3.0037978250793E+15
Volume
1.2384253921361E+23
Surface area
1.2015191300317E+16
Circumference
194285451.6441
Perimeter
123685960
Area
956138543820100
Diagonal
43729590.526784
Surface area
5736831262920600
Volume
2.9565228421348E+22
Space diagonal
53557591.725733
Perimeter
92764470
Area
4.1402013424283E+14
Altitude
26778795.862866
Surface area
4.1402013424283E+14
Volume
3.4842955840107E+21
Height
14576530.175595