78161868 is an even 8-digits composite number following 78161867
and preceding 78161869 . In scientific notation, it is written as 7.8161868 × 10^7.
The sum of its digits is 45. It has a total of 5 prime factors and 24 positive divisors.
There are 26053920 positive integers (up to 78161868) that are relatively prime to 78161868.
78161868 has 24 divisors, whose sum is 202642160
The reverse of 78161868 is 86816187
Previous prime number is 9
Is Prime? no Number parity even Number length 8 Sum of Digits 45 Digital Root 9
Name
seventy-eight million one hundred sixty-one thousand eight hundred sixty-eight
Scientific notation
7.8161868 × 10^7
Engineering notation
7.8161868 × 10^6
Prime Factorization
2 × 2 × 3 × 9 × 723721
Composite number
ω Distinct Factors
4 Total number of distinct prime factors
Ω Total Factors
5 Total number of prime factors
rad Radical
39080934 Product of the distinct prime numbers
The prime factorization of 78161868 is 2 × 2 × 3 × 9 × 723721.
Since it has a total of 5 prime factors.
5 , 6 , 74 , 91 , 941 , 116 , 5094 , 7948 , 15913 , 30902 , 620385 , 909873 , 166760 , 296489 , 53847812 , 73675532 , 800212102 , 254251668 , 8771477494 , 9022105268
n×2
156323736
n×3
234485604
n×4
312647472
n×5
390809340
n÷2
39080934
n÷3
26053956
n÷3
19540467
n÷5
15632373.6
n2
6109277609249424
n3
4.7751255006951E+23
n4
3.7323272906876E+31
n5
2.9172567302752E+39
2 √n8840.9200878642
3 √n427.56122237995
4 √n94.026167038033
5 √n37.896489899909
1 , 2 , 3 , 4 , 6 , 9 , 12 , 18 , 27 , 36 , 54 , 108 , 723721 , 1447442 , 2171163 , 2894884 , 4342326 , 6513489 , 8684652 , 13026978 , 19540467 , 26053956 , 39080934 , 78161868
24 divisors
τ Total Divisors
24 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-78161867 Sum of the proper positive divisors of n
A Arithmetic Mean
0.041666666666667 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
24 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 78161868 can be divided by 24 positive divisors.
The sum of these divisors (counting 78161868) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
100101010001010011111001100
3
Ternary
12110002000221000
4
Quaternary
10222022133030
5
Quinary
130002134433
6
Senary
11431140300
8
Octal
452123714
10
Decimal
78161868
12
Duodecimal
22214690
16
Hexadecimal
4a8a7cc
20
Vigesimal
148a4d8
36
Base36
1aja30
md5
efe84d0a570a63876c20f795c37e2e41
sha1
db90324bf82aa3f7332be53c2f77194e9739b2bf
sha256
fa8d6c97107c3dc7babb710de00e468777367b51bec1534fcb5f26e622ed19ac
sha512
8a9a8ee92d260a651dd85cda3906742f0143e8659b0939c23cbf88cdbdba7d00657cedb182d640c2616d4f7dfe2b38c20a379fbda3f1b41fc5634e0a2cf1a6c7
ripemd-160
fdf3018ceab2d671d880a7ee33b65c9a63f249af
Diameter
156323736
Circumference
491105500.59931
Area
1.9192861655959E+16
Volume
2.0001998923937E+24
Surface area
7.6771446623834E+16
Circumference
491105500.59931
Perimeter
312647472
Area
6109277609249424
Diagonal
110537573.78602
Surface area
36655665655496544
Volume
4.7751255006951E+23
Space diagonal
135380326.59049
Perimeter
234485604
Area
2.6453948041907E+15
Altitude
67690163.295246
Surface area
2.6453948041907E+15
Volume
5.6275393709305E+22
Height
36845857.928672