30721892 is an even 8-digits composite number following 30721891
and preceding 30721893 . In scientific notation, it is written as 3.0721892 × 10^7.
The sum of its digits is 32. It has a total of 4 prime factors and 12 positive divisors.
There are 15332256 positive integers (up to 30721892) that are relatively prime to 30721892.
30721892 has 12 divisors, whose sum is 53863740
The reverse of 30721892 is 29812703
Previous prime number is 557
Is Prime? no
Number parity even
Number length 8
Sum of Digits 32
Digital Root 5
Name
thirty million seven hundred twenty-one thousand eight hundred ninety-two
Scientific notation
3.0721892 × 10^7
Engineering notation
3.0721892 × 10^6
Prime Factorization
2 × 2 × 557 × 13789
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
15360946
Product of the distinct prime numbers
The prime factorization of 30721892 is 2 × 2 × 557 × 13789.
Since it has a total of 4 prime factors.
6 , 1 , 18 , 99 , 230 , 352 , 9916 , 6565 , 42354 , 51343 , 946263 , 372172 , 6561496 , 6895610 , 26782338 , 97296672 , 293201567 , 160318463 , 8405735076 , 3407152854
n×2
61443784
n×3
92165676
n×4
122887568
n×5
153609460
n÷2
15360946
n÷3
10240630.666667
n÷3
7680473
n÷5
6144378.4
n2
943834648059664
n3
2.8996386123547E+22
n4
8.9082384287791E+29
n5
2.736779389192E+37
2 √n
5542.7332607658
3 √n
313.19584078789
4 √n
74.449534993617
5 √n
31.440510684595
1 , 2 , 4 , 557 , 1114 , 2228 , 13789 , 27578 , 55156 , 7680473 , 15360946 , 30721892
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-30721891
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 30721892 can be divided by 12 positive divisors.
The sum of these divisors (counting 30721892) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1110101001100011101100100
3
Ternary
2010210211111212
4
Quaternary
1311030131210
5
Quinary
30331100032
6
Senary
3014250552
8
Octal
165143544
10
Decimal
30721892
12
Duodecimal
a356a58
16
Hexadecimal
1d4c764
20
Vigesimal
9c04ec
36
Base36
iah5w
md5
f02d2795d26a424baa5f87808d19493c
sha1
f7670bf758897684e953ef896624e40b8019fd80
sha256
0ea671b9744e60e025398539f0eea5490739fd9b851ade3e1829410e08946493
sha512
2f89fd2333966b3c60dc9f0b3d2a7742a38c27835df2b5588276f6c4f8dfb609905125ae867a5e53a144ef76f464a76fa6f136b80e48c623de94128692f1bc27
ripemd-160
25b014365fc740c60eeccb2cb1f492b3f8c7fcbb
Diameter
61443784
Circumference
193031340.42316
Area
2.9651439965477E+15
Volume
1.2145977816852E+23
Surface area
1.1860575986191E+16
Circumference
193031340.42316
Perimeter
122887568
Area
943834648059664
Diagonal
43447316.328161
Surface area
5663007888357984
Volume
2.8996386123547E+22
Space diagonal
53211877.848644
Perimeter
92165676
Area
4.0869239109581E+14
Altitude
26605938.924322
Surface area
4.0869239109581E+14
Volume
3.4172568763106E+21
Height
14482438.776054