30721893 is an odd 8-digits composite number following 30721892
and preceding 30721894 . In scientific notation, it is written as 3.0721893 × 10^7.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 20481260 positive integers (up to 30721893) that are relatively prime to 30721893.
30721893 has 4 divisors, whose sum is 40962528
The reverse of 30721893 is 39812703
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
thirty million seven hundred twenty-one thousand eight hundred ninety-three
Scientific notation
3.0721893 × 10^7
Engineering notation
3.0721893 × 10^6
Prime Factorization
3 × 10240631
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
30721893
Product of the distinct prime numbers
The prime factorization of 30721893 is 3 × 10240631.
Since it has a total of 2 prime factors.
9 , 9 , 39 , 30 , 512 , 579 , 9575 , 6150 , 50816 , 50722 , 506442 , 785140 , 6192154 , 1210640 , 31309125 , 51366722 , 210504425 , 7764110 , 4637533715 , 4655183763
n×2
61443786
n×3
92165679
n×4
122887572
n×5
153609465
n÷2
15360946.5
n÷3
10240631
n÷3
7680473.25
n÷5
6144378.6
n2
943834709503449
n3
2.8996388955051E+22
n4
8.9082395886346E+29
n5
2.736779834604E+37
2 √n
5542.733350974
3 √n
313.19584418607
4 √n
74.449535599452
5 √n
31.440510889273
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
-30721892
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 30721893 can be divided by 4 positive divisors.
The sum of these divisors (counting 30721893) is 1, the average is 0.25.
Base
System
Value
2
Binary
1110101001100011101100101
3
Ternary
2010210211111220
4
Quaternary
1311030131211
5
Quinary
30331100033
6
Senary
3014250553
8
Octal
165143545
10
Decimal
30721893
12
Duodecimal
a356a59
16
Hexadecimal
1d4c765
20
Vigesimal
9c04ed
36
Base36
iah5x
md5
651788a00a875a3d2ded691e0886c442
sha1
2801e2fa7180bc23451dfc7a30586e176d9708d3
sha256
f09e59273b753ee89b1a856d22b0f7bea7bfb33d43f5de88f1e8afa50c97ba4d
sha512
6d4863695002a2434dd3bd49b5f4aeffbf93c6a00855d45acbc76bd191b683a5cd4bf7da0a4c1a5fa233b4adcbe7228162edfce6850de114e61169eddbe2312c
ripemd-160
568287f5a7795ed938d920d39c531e969600dcfa
Diameter
61443786
Circumference
193031346.70634
Area
2.9651441895791E+15
Volume
1.2145979002909E+23
Surface area
1.1860576758316E+16
Circumference
193031346.70634
Perimeter
122887572
Area
943834709503449
Diagonal
43447317.742375
Surface area
5663008257020694
Volume
2.8996388955051E+22
Space diagonal
53211879.580695
Perimeter
92165679
Area
4.0869241770175E+14
Altitude
26605939.790347
Surface area
4.0869241770175E+14
Volume
3.4172572100066E+21
Height
14482439.247458