30921491 is an odd 8-digits composite number following 30921490
and preceding 30921492 . In scientific notation, it is written as 3.0921491 × 10^7.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 30878232 positive integers (up to 30921491) that are relatively prime to 30921491.
30921491 has 4 divisors, whose sum is 30964752
The reverse of 30921491 is 19412903
Previous prime number is 727
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
thirty million nine hundred twenty-one thousand four hundred ninety-one
Scientific notation
3.0921491 × 10^7
Engineering notation
3.0921491 × 10^6
Prime Factorization
727 × 42533
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
30921491
Product of the distinct prime numbers
The prime factorization of 30921491 is 727 × 42533.
Since it has a total of 2 prime factors.
9 , 8 , 100 , 17 , 662 , 328 , 3613 , 2906 , 11425 , 20539 , 48116 , 943326 , 6507803 , 48333 , 88862109 , 76119220 , 565146796 , 690995052 , 7596938641 , 3949824116
n×2
61842982
n×3
92764473
n×4
123685964
n×5
154607455
n÷2
15460745.5
n÷3
10307163.666667
n÷3
7730372.75
n÷5
6184298.2
n2
956138605663081
n3
2.9565231289764E+22
n4
9.1420103323934E+29
n5
2.8268459021501E+37
2 √n
5560.7095770234
3 √n
313.87265110469
4 √n
74.570165461955
5 √n
31.481258494762
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
-30921490
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 30921491 can be divided by 4 positive divisors.
The sum of these divisors (counting 30921491) is 1, the average is 0.25.
Base
System
Value
2
Binary
1110101111101001100010011
3
Ternary
2011011222022102
4
Quaternary
1311331030103
5
Quinary
30403441431
6
Senary
3022431015
8
Octal
165751423
10
Decimal
30921491
12
Duodecimal
a43246b
16
Hexadecimal
1d7d313
20
Vigesimal
9d53eb
36
Base36
ier6b
md5
5ef71d38e5d651d15ee20f0e47b33066
sha1
de87bcb4f567ec4b490c423c49fca37d4898d897
sha256
7a6d09b52faa0a9463714fdc1b3d63dfa81cf11f0799789b52cb95346003afaf
sha512
44cda78ce1da9e30d136f1a959c85233973d61304416cbd38d310ce526b503d45d96ac17dcc3e64c8a753bea7c7822a416709cfb89bc1a8d5f84484d1cf9b91a
ripemd-160
961282fd054478a504c6a8c7840203e6c850d486
Diameter
61842982
Circumference
194285457.92729
Area
3.0037980193647E+15
Volume
1.2384255122881E+23
Surface area
1.2015192077459E+16
Circumference
194285457.92729
Perimeter
123685964
Area
956138605663081
Diagonal
43729591.940998
Surface area
5736831633978486
Volume
2.9565231289764E+22
Space diagonal
53557593.457784
Perimeter
92764473
Area
4.1402016102163E+14
Altitude
26778796.728892
Surface area
4.1402016102163E+14
Volume
3.4842959220567E+21
Height
14576530.646999