30721661 is an odd 8-digits composite number following 30721660
and preceding 30721662 . In scientific notation, it is written as 3.0721661 × 10^7.
The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors.
There are 30709692 positive integers (up to 30721661) that are relatively prime to 30721661.
30721661 has 4 divisors, whose sum is 30733632
The reverse of 30721661 is 16612703
Previous prime number is 3727
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
thirty million seven hundred twenty-one thousand six hundred sixty-one
Scientific notation
3.0721661 × 10^7
Engineering notation
3.0721661 × 10^6
Prime Factorization
3727 × 8243
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
30721661
Product of the distinct prime numbers
The prime factorization of 30721661 is 3727 × 8243.
Since it has a total of 2 prime factors.
6 , 8 , 36 , 48 , 915 , 342 , 1704 , 3312 , 44189 , 86517 , 254672 , 809555 , 7081543 , 5291160 , 42969012 , 24656651 , 147416848 , 517151601 , 1655376428 , 8888010792
n×2
61443322
n×3
92164983
n×4
122886644
n×5
153608305
n÷2
15360830.5
n÷3
10240553.666667
n÷3
7680415.25
n÷5
6144332.2
n2
943820454598921
n3
2.8995732051054E+22
n4
8.9079705051931E+29
n5
2.7366765005854E+37
2 √n
5542.7124226321
3 √n
313.19505580563
4 √n
74.449395045441
5 √n
31.440463403784
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
-30721660
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 30721661 can be divided by 4 positive divisors.
The sum of these divisors (counting 30721661) is 1, the average is 0.25.
Base
System
Value
2
Binary
1110101001100011001111101
3
Ternary
2010210211012022
4
Quaternary
1311030121331
5
Quinary
30331043121
6
Senary
3014245525
8
Octal
165143175
10
Decimal
30721661
12
Duodecimal
a3568a5
16
Hexadecimal
1d4c67d
20
Vigesimal
9c0431
36
Base36
iagzh
md5
ce7e9680dc3ed88e4f64b36f426bea14
sha1
4012229896774c83a0917fafb3eee220ed4bff40
sha256
70acce5d9298dfd5f869ebd7c0f73144ea4b0f081bcec82daf269a70db60619c
sha512
306f86100c4933df417d2fc1234f26db220360b6c6196842f173c150aed68503bc7ad3ade24e9376acdb18b35097c96fe79d5dd863888e229b951bedb30439cb
ripemd-160
337e8c259e3e9f703e03817036d135d21f7739ce
Diameter
61443322
Circumference
193029889.00735
Area
2.9650994064757E+15
Volume
1.2145703839607E+23
Surface area
1.1860397625903E+16
Circumference
193029889.00735
Perimeter
122886644
Area
943820454598921
Diagonal
43446989.644829
Surface area
5662922727593526
Volume
2.8995732051054E+22
Space diagonal
53211477.744907
Perimeter
92164983
Area
4.0868624514702E+14
Altitude
26605738.872454
Surface area
4.0868624514702E+14
Volume
3.4171797931281E+21
Height
14482329.88161