78164921 is an odd 8-digits composite number following 78164920
and preceding 78164922 . In scientific notation, it is written as 7.8164921 × 10^7.
The sum of its digits is 38. It has a total of 2 prime factors and 4 positive divisors.
There are 78057552 positive integers (up to 78164921) that are relatively prime to 78164921.
78164921 has 4 divisors, whose sum is 78272292
The reverse of 78164921 is 12946187
Previous prime number is 733
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
seventy-eight million one hundred sixty-four thousand nine hundred twenty-one
Scientific notation
7.8164921 × 10^7
Engineering notation
7.8164921 × 10^6
Prime Factorization
733 × 106637
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
78164921
Product of the distinct prime numbers
The prime factorization of 78164921 is 733 × 106637.
Since it has a total of 2 prime factors.
4 , 4 , 32 , 54 , 769 , 789 , 2633 , 4853 , 90960 , 86545 , 893867 , 4576 , 4002748 , 1109590 , 99036542 , 6227559 , 597251950 , 382662534 , 4118021238 , 4681561307
n×2
156329842
n×3
234494763
n×4
312659684
n×5
390824605
n÷2
39082460.5
n÷3
26054973.666667
n÷3
19541230.25
n÷5
15632984.2
n2
6109754874936241
n3
4.7756850712876E+23
n4
3.7329104631807E+31
n5
2.9178265145459E+39
2 √n
8841.0927492024
3 √n
427.56678914992
4 √n
94.027085189335
5 √n
37.896785942414
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
-78164920
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 78164921 can be divided by 4 positive divisors.
The sum of these divisors (counting 78164921) is 1, the average is 0.25.
Base
System
Value
2
Binary
100101010001011001110111001
3
Ternary
12110002012010002
4
Quaternary
10222023032321
5
Quinary
130002234141
6
Senary
11431202345
8
Octal
452131671
10
Decimal
78164921
12
Duodecimal
222163b5
16
Hexadecimal
4a8b3b9
20
Vigesimal
148ac61
36
Base36
1ajcft
md5
c974177869e0806c8abde35bcf7b9be5
sha1
bf2563cb93da98b835b0ad71d9960d09ed740bd6
sha256
99e0e6be589d43324132c2379d457f1130c6f43137ab2dae33ebf070ed15e56e
sha512
88bf7a6da9b3be90132f98da82f0fc6ec2a628869c4016b3e4622af11070cfa43b8d49f3777c060a88340139d567795c4fa2f44f586b56e9c20d70d3b95007df
ripemd-160
d62c6f3ce2700841930a8952d577360b2f16f7a3
Diameter
156329842
Circumference
491124683.16405
Area
1.9194361030334E+16
Volume
2.0004342847754E+24
Surface area
7.6777444121336E+16
Circumference
491124683.16405
Perimeter
312659684
Area
6109754874936241
Diagonal
110541891.38002
Surface area
36658529249617446
Volume
4.7756850712876E+23
Space diagonal
135385614.54161
Perimeter
234494763
Area
2.6456014662953E+15
Altitude
67692807.270804
Surface area
2.6456014662953E+15
Volume
5.628198831198E+22
Height
36847297.126674