78129621 is an odd 8-digits composite number following 78129620
and preceding 78129622 . In scientific notation, it is written as 7.8129621 × 10^7.
The sum of its digits is 36. It has a total of 3 prime factors and 8 positive divisors.
There are 52022376 positive integers (up to 78129621) that are relatively prime to 78129621.
78129621 has 8 divisors, whose sum is 86917440
The reverse of 78129621 is 12692187
Previous prime number is 887
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
seventy-eight million one hundred twenty-nine thousand six hundred twenty-one
Scientific notation
7.8129621 × 10^7
Engineering notation
7.8129621 × 10^6
Prime Factorization
9 × 887 × 9787
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
78129621
Product of the distinct prime numbers
The prime factorization of 78129621 is 9 × 887 × 9787.
Since it has a total of 3 prime factors.
7 , 5 , 67 , 23 , 414 , 994 , 2110 , 7470 , 45293 , 84023 , 672427 , 711632 , 3832364 , 1802366 , 80376707 , 99980092 , 782289694 , 103596851 , 5593355421 , 549935224
n×2
156259242
n×3
234388863
n×4
312518484
n×5
390648105
n÷2
39064810.5
n÷3
26043207
n÷3
19532405.25
n÷5
15625924.2
n2
6104237677603641
n3
4.7692177624509E+23
n4
3.7261717624676E+31
n5
2.9112438758249E+39
2 √n
8839.0961642014
3 √n
427.50241508844
4 √n
94.016467516076
5 √n
37.893362416235
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-78129620
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 78129621 can be divided by 8 positive divisors.
The sum of these divisors (counting 78129621) is 1, the average is 0.125.
Base
System
Value
2
Binary
100101010000010100111010101
3
Ternary
12110000101200200
4
Quaternary
10222002213111
5
Quinary
130000121441
6
Senary
11430331113
8
Octal
452024725
10
Decimal
78129621
12
Duodecimal
221b9a99
16
Hexadecimal
4a829d5
20
Vigesimal
1486411
36
Base36
1ail79
md5
04ef7a7664d57bce3baefe58152064f6
sha1
67d80be6f1d0a2ee1d6776c1de586c8200e5cddd
sha256
103ab378e1c7f627b54305e974e812ca6c6e7cda59126e46268a185a1ebfce99
sha512
b6a0eba3091e2dac864017f79595972b67625337a6508901dc1375162974fa377c2b46c2794f1db56ea9c51533726930f00003dfc5d17f53f83efbc57903698e
ripemd-160
284cb346032be8c6c7e67eaada0dcdf9560f0542
Diameter
156259242
Circumference
490902886.72271
Area
1.9177028243726E+16
Volume
1.9977252647848E+24
Surface area
7.6708112974902E+16
Circumference
490902886.72271
Perimeter
312518484
Area
6104237677603641
Diagonal
110491969.64127
Surface area
36625426065621846
Volume
4.7692177624509E+23
Space diagonal
135324473.1481
Perimeter
234388863
Area
2.6432124497714E+15
Altitude
67662236.57405
Surface area
2.6432124497714E+15
Volume
5.6205770346406E+22
Height
36830656.54709