78161925 is an odd 8-digits composite number following 78161924
and preceding 78161926 . In scientific notation, it is written as 7.8161925 × 10^7.
The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors.
There are 41376640 positive integers (up to 78161925) that are relatively prime to 78161925.
78161925 has 16 divisors, whose sum is 109190016
The reverse of 78161925 is 52916187
Previous prime number is 137
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
seventy-eight million one hundred sixty-one thousand nine hundred twenty-five
Scientific notation
7.8161925 × 10^7
Engineering notation
7.8161925 × 10^6
Prime Factorization
3 × 25 × 137 × 7607
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
78161925
Product of the distinct prime numbers
The prime factorization of 78161925 is 3 × 25 × 137 × 7607.
Since it has a total of 4 prime factors.
4 , 1 , 24 , 4 , 600 , 717 , 1762 , 1997 , 38505 , 72821 , 24253 , 623417 , 6201883 , 1058735 , 32265298 , 74412228 , 549281669 , 511993875 , 5618515831 , 2424346997
n×2
156323850
n×3
234485775
n×4
312647700
n×5
390809625
n÷2
39080962.5
n÷3
26053975
n÷3
19540481.25
n÷5
15632385
n2
6109286519705625
n3
4.7751359475674E+23
n4
3.7323381779857E+31
n5
2.9172673674235E+39
2 √n
8840.9233115099
3 √n
427.56132631377
4 √n
94.026184180312
5 √n
37.896495427154
1 , 3 , 25 , 75 , 137 , 411 , 3425 , 7607 , 10275 , 22821 , 190175 , 570525 , 1042159 , 3126477 , 26053975 , 78161925
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
-78161924
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 78161925 can be divided by 16 positive divisors.
The sum of these divisors (counting 78161925) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100101010001010100000000101
3
Ternary
12110002001000010
4
Quaternary
10222022200011
5
Quinary
130002140200
6
Senary
11431140433
8
Octal
452124005
10
Decimal
78161925
12
Duodecimal
22214719
16
Hexadecimal
4a8a805
20
Vigesimal
148a4g5
36
Base36
1aja4l
md5
4820403f02df7839774345cb7e5af50d
sha1
ef79cb7a40bdc8fa02c5f3ee72e222beb453067f
sha256
62829e13a558eddf824a41c05d029aa937d125340e8d2f49d857611564712803
sha512
ae8dc4144b0b30e75b6cd9c52798c6e623887f3f72d312afa3564c32bead0629cc32c896975874cb0dd8d5c35fe0f1a395af18ed1dc94bb322e49f228a397c91
ripemd-160
136870cd61fc52b215bbeb6e1256b9b2ef5c6654
Diameter
156323850
Circumference
491105858.74087
Area
1.9192889648982E+16
Volume
2.0002042683694E+24
Surface area
7.6771558595929E+16
Circumference
491105858.74087
Perimeter
312647700
Area
6109286519705625
Diagonal
110537654.39619
Surface area
36655719118233750
Volume
4.7751359475674E+23
Space diagonal
135380425.31739
Perimeter
234485775
Area
2.6453986625314E+15
Altitude
67690212.658694
Surface area
2.6453986625314E+15
Volume
5.6275516826876E+22
Height
36845884.79873