77978788 is an even 8-digits composite number following 77978787
and preceding 77978789 . In scientific notation, it is written as 7.7978788 × 10^7.
The sum of its digits is 61. It has a total of 4 prime factors and 12 positive divisors.
There are 38946080 positive integers (up to 77978788) that are relatively prime to 77978788.
77978788 has 12 divisors, whose sum is 136614492
The reverse of 77978788 is 88787977
Previous prime number is 941
Is Prime? no
Number parity even
Number length 8
Sum of Digits 61
Digital Root 7
Name
seventy-seven million nine hundred seventy-eight thousand seven hundred eighty-eight
Scientific notation
7.7978788 × 10^7
Engineering notation
7.7978788 × 10^6
Prime Factorization
2 × 2 × 941 × 20717
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
38989394
Product of the distinct prime numbers
The prime factorization of 77978788 is 2 × 2 × 941 × 20717.
Since it has a total of 4 prime factors.
9 , 5 , 1 , 71 , 961 , 878 , 8564 , 298 , 80520 , 92848 , 384622 , 97328 , 7833181 , 1057591 , 22942708 , 97206277 , 665926726 , 12850945 , 5625435571 , 4177242245
n×2
155957576
n×3
233936364
n×4
311915152
n×5
389893940
n÷2
38989394
n÷3
25992929.333333
n÷3
19494697
n÷5
15595757.6
n2
6080691377948944
n3
4.7416494385451E+23
n4
3.6974807633863E+31
n5
2.8832506858218E+39
2 √n
8830.559891649
3 √n
427.22713318991
4 √n
93.971058798169
5 √n
37.878720112196
1 , 2 , 4 , 941 , 1882 , 3764 , 20717 , 41434 , 82868 , 19494697 , 38989394 , 77978788
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
-77978787
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 77978788 can be divided by 12 positive divisors.
The sum of these divisors (counting 77978788) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
100101001011101110010100100
3
Ternary
12102201201210021
4
Quaternary
10221131302210
5
Quinary
124430310123
6
Senary
11423204524
8
Octal
451356244
10
Decimal
77978788
12
Duodecimal
22146744
16
Hexadecimal
4a5dca4
20
Vigesimal
14776j8
36
Base36
1afctg
md5
608cdeb3154c04ba19e18c473f4be5c5
sha1
be930dc6ad0291eded265276e98ea53ee6206ebb
sha256
d4f859a2dd449e025ac76d6e3b2a611ad70aaa4865804881d8ec93d4da1674b2
sha512
5c0cd6a55373a1fe7b9db886d15ae45d07e51f171d89038005cb23e6f2a3e22d18a7a033136687054ccb12a0f29865b8fcbf2649c0c7afb7506a0f43be18f479
ripemd-160
3c513bd52ff773e52a4085fda614f6e7b9871eb6
Diameter
155957576
Circumference
489955175.03327
Area
1.9103055361711E+16
Volume
1.9861774722709E+24
Surface area
7.6412221446845E+16
Circumference
489955175.03327
Perimeter
311915152
Area
6080691377948944
Diagonal
110278659.56702
Surface area
36484148267693664
Volume
4.7416494385451E+23
Space diagonal
135063222.72864
Perimeter
233936364
Area
2.6330166029384E+15
Altitude
67531611.364321
Surface area
2.6330166029384E+15
Volume
5.588087453341E+22
Height
36759553.189005