77885721 is an odd 8-digits composite number following 77885720
and preceding 77885722 . In scientific notation, it is written as 7.7885721 × 10^7.
The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors.
There are 47825280 positive integers (up to 77885721) that are relatively prime to 77885721.
77885721 has 16 divisors, whose sum is 93588480
The reverse of 77885721 is 12758877
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
seventy-seven million eight hundred eighty-five thousand seven hundred twenty-one
Scientific notation
7.7885721 × 10^7
Engineering notation
7.7885721 × 10^6
Prime Factorization
9 × 17 × 47 × 10831
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
77885721
Product of the distinct prime numbers
The prime factorization of 77885721 is 9 × 17 × 47 × 10831.
Since it has a total of 4 prime factors.
2 , 5 , 33 , 23 , 901 , 496 , 3368 , 4488 , 16740 , 54125 , 632613 , 979904 , 8805893 , 9191548 , 82618699 , 16666821 , 950431619 , 503807798 , 9929537000 , 5639533153
n×2
155771442
n×3
233657163
n×4
311542884
n×5
389428605
n÷2
38942860.5
n÷3
25961907
n÷3
19471430.25
n÷5
15577144.2
n2
6066185535689841
n3
4.7246923416697E+23
n4
3.6798606953413E+31
n5
2.8660860343622E+39
2 √n
8825.2887204895
3 √n
427.05710158193
4 √n
93.943007831821
5 √n
37.869674208592
1 , 9 , 17 , 47 , 153 , 423 , 799 , 7191 , 10831 , 97479 , 184127 , 509057 , 1657143 , 4581513 , 8653969 , 77885721
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
-77885720
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 77885721 can be divided by 16 positive divisors.
The sum of these divisors (counting 77885721) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100101001000111000100011001
3
Ternary
12102120000010100
4
Quaternary
10221013010121
5
Quinary
124414320341
6
Senary
11421210013
8
Octal
451070431
10
Decimal
77885721
12
Duodecimal
22100909
16
Hexadecimal
4a47119
20
Vigesimal
146fe61
36
Base36
1add09
md5
e97d9f459b1855ca3c7d659f89216d85
sha1
63a78361f65e6e48d7e8f87ba0f0e563dca3798e
sha256
0e3500a0ede1706c74ce4d856bf80712bbd6118dccd716b25d4544c5cacbfb7f
sha512
b75b7d656a6099f95d5c54cc0c27d60e54bf23c52529012303fa3de49a35803a96187cbc448e1d2b47b31593fd64dcd9ef41afdd7e3bb6ab0fa005f0ba5f3875
ripemd-160
ce5610b7cc5fdfbf89f94368dc63c237f1d0524d
Diameter
155771442
Circumference
489370417.82629
Area
1.9057483914236E+16
Volume
1.9790745001416E+24
Surface area
7.6229935656943E+16
Circumference
489370417.82629
Perimeter
311542884
Area
6066185535689841
Diagonal
110147042.95341
Surface area
36397113214139046
Volume
4.7246923416697E+23
Space diagonal
134902025.95613
Perimeter
233657163
Area
2.6267353889886E+15
Altitude
67451012.978067
Surface area
2.6267353889886E+15
Volume
5.5681033230247E+22
Height
36715680.984469