30921639 is an odd 8-digits composite number following 30921638
and preceding 30921640 . In scientific notation, it is written as 3.0921639 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 17404992 positive integers (up to 30921639) that are relatively prime to 30921639.
30921639 has 16 divisors, whose sum is 47824128
The reverse of 30921639 is 93612903
Previous prime number is 67
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
thirty million nine hundred twenty-one thousand six hundred thirty-nine
Scientific notation
3.0921639 × 10^7
Engineering notation
3.0921639 × 10^6
Prime Factorization
3 × 7 × 67 × 21977
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
30921639
Product of the distinct prime numbers
The prime factorization of 30921639 is 3 × 7 × 67 × 21977.
Since it has a total of 4 prime factors.
5 , 10 , 41 , 7 , 151 , 582 , 3255 , 5502 , 48969 , 65572 , 448776 , 158628 , 5847083 , 3658298 , 31451720 , 27468845 , 950202148 , 738758821 , 2067419589 , 6042599934
n×2
61843278
n×3
92764917
n×4
123686556
n×5
154608195
n÷2
15460819.5
n÷3
10307213
n÷3
7730409.75
n÷5
6184327.8
n2
956147758446321
n3
2.9565655817336E+22
n4
9.1421853598192E+29
n5
2.8269135536742E+37
2 √n
5560.7228846617
3 √n
313.87315186836
4 √n
74.570254690873
5 √n
31.481288630549
1 , 3 , 7 , 21 , 67 , 201 , 469 , 1407 , 21977 , 65931 , 153839 , 461517 , 1472459 , 4417377 , 10307213 , 30921639
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
-30921638
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 30921639 can be divided by 16 positive divisors.
The sum of these divisors (counting 30921639) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1110101111101001110100111
3
Ternary
2011011222111220
4
Quaternary
1311331032213
5
Quinary
30403443024
6
Senary
3022431423
8
Octal
165751647
10
Decimal
30921639
12
Duodecimal
a432573
16
Hexadecimal
1d7d3a7
20
Vigesimal
9d541j
36
Base36
ieraf
md5
ba6c85f9b343d4ac067bcf5366a8340f
sha1
283176586b72ec5df2fc9816b2de18657ad60b37
sha256
dd1718afd306036bffe1ad2e7dde55abab587edec40a6cd6a5177d427fdbd5d4
sha512
976152bcf6acda47a261c6775511a0823c877c731d06cc06c6014f05c303dc42487686bdbbaee364d66f5c3394eaae0b1719296b4ebaf95aa2b1c8e9e265c19e
ripemd-160
cb895d5514d13a870e22763be44b500c200dc917
Diameter
61843278
Circumference
194286387.83871
Area
3.0038267736813E+15
Volume
1.2384432948574E+23
Surface area
1.2015307094725E+16
Circumference
194286387.83871
Perimeter
123686556
Area
956147758446321
Diagonal
43729801.244605
Surface area
5736886550677926
Volume
2.9565655817336E+22
Space diagonal
53557849.801303
Perimeter
92764917
Area
4.1402412429303E+14
Altitude
26778924.900652
Surface area
4.1402412429303E+14
Volume
3.484345953111E+21
Height
14576600.414868