77881921 is an odd 8-digits composite number following 77881920
and preceding 77881922 . In scientific notation, it is written as 7.7881921 × 10^7.
The sum of its digits is 43. It has a total of 2 prime factors and 4 positive divisors.
There are 71890992 positive integers (up to 77881921) that are relatively prime to 77881921.
77881921 has 4 divisors, whose sum is 83872852
The reverse of 77881921 is 12918877
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
seventy-seven million eight hundred eighty-one thousand nine hundred twenty-one
Scientific notation
7.7881921 × 10^7
Engineering notation
7.7881921 × 10^6
Prime Factorization
13 × 5990917
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
77881921
Product of the distinct prime numbers
The prime factorization of 77881921 is 13 × 5990917.
Since it has a total of 2 prime factors.
2 , 8 , 29 , 82 , 179 , 277 , 8975 , 7501 , 48583 , 60679 , 111359 , 400155 , 3445906 , 8386367 , 72461794 , 60158580 , 41482309 , 845837964 , 2104974332 , 6704521265
n×2
155763842
n×3
233645763
n×4
311527684
n×5
389409605
n÷2
38940960.5
n÷3
25960640.333333
n÷3
19470480.25
n÷5
15576384.2
n2
6065593618650241
n3
4.7240008302582E+23
n4
3.6791425946611E+31
n5
2.8653869290513E+39
2 √n
8825.0734274566
3 √n
427.050156178
4 √n
93.941861954384
5 √n
37.869304673409
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
-77881920
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 77881921 can be divided by 4 positive divisors.
The sum of these divisors (counting 77881921) is 1, the average is 0.25.
Base
System
Value
2
Binary
100101001000110001001000001
3
Ternary
12102112210220121
4
Quaternary
10221012021001
5
Quinary
124414210141
6
Senary
11421140241
8
Octal
451061101
10
Decimal
77881921
12
Duodecimal
220ba681
16
Hexadecimal
4a46241
20
Vigesimal
146f4g1
36
Base36
1ada2p
md5
6b6263971353c6e3fc4cd15dbece460b
sha1
5f7dfd56f38906a56e86a7f18fe98b6fdfbaa696
sha256
d94e26231bccaf5a5908bf0878692238ef888d4491edc461c704be8a31f1ff24
sha512
fd91582e065cf94f86449b94acc6f7c68b6a6e1cc0cd3145bc23851da820bb924219dc36750ab02989ad53ab39df45c09ea2cd10036c4be496e969cea929b9a4
ripemd-160
0d45c0a95d7b38b20ae8c704ed1e63bd43ec5547
Diameter
155763842
Circumference
489346541.72212
Area
1.9055624352013E+16
Volume
1.9787848405188E+24
Surface area
7.6222497408051E+16
Circumference
489346541.72212
Perimeter
311527684
Area
6065593618650241
Diagonal
110141668.94187
Surface area
36393561711901446
Volume
4.7240008302582E+23
Space diagonal
134895444.16307
Perimeter
233645763
Area
2.6264790813919E+15
Altitude
67447722.081533
Surface area
2.6264790813919E+15
Volume
5.5672883690108E+22
Height
36713889.64729