78421916 is an even 8-digits composite number following 78421915
and preceding 78421917 . In scientific notation, it is written as 7.8421916 × 10^7.
The sum of its digits is 38. It has a total of 4 prime factors and 12 positive divisors.
There are 37858800 positive integers (up to 78421916) that are relatively prime to 78421916.
78421916 has 12 divisors, whose sum is 141970920
The reverse of 78421916 is 61912487
Previous prime number is 29
Is Prime? no
Number parity even
Number length 8
Sum of Digits 38
Digital Root 2
Name
seventy-eight million four hundred twenty-one thousand nine hundred sixteen
Scientific notation
7.8421916 × 10^7
Engineering notation
7.8421916 × 10^6
Prime Factorization
2 × 2 × 29 × 676051
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
39210958
Product of the distinct prime numbers
The prime factorization of 78421916 is 2 × 2 × 29 × 676051.
Since it has a total of 4 prime factors.
10 , 7 , 19 , 16 , 505 , 869 , 9835 , 3448 , 41590 , 85212 , 571257 , 10955 , 3288691 , 3766985 , 14079558 , 12660388 , 114039396 , 469241305 , 3407486092 , 4194075227
n×2
156843832
n×3
235265748
n×4
313687664
n×5
392109580
n÷2
39210958
n÷3
26140638.666667
n÷3
19605479
n÷5
15684383.2
n2
6149996909111056
n3
4.8229454100657E+23
n4
3.7822461982076E+31
n5
2.9661099364715E+39
2 √n
8855.614941945
3 √n
428.03486920035
4 √n
94.104276958834
5 √n
37.921673068359
1 , 2 , 4 , 29 , 58 , 116 , 676051 , 1352102 , 2704204 , 19605479 , 39210958 , 78421916
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
-78421915
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 78421916 can be divided by 12 positive divisors.
The sum of these divisors (counting 78421916) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
100101011001001111110011100
3
Ternary
12110120020122102
4
Quaternary
10223021332130
5
Quinary
130034000131
6
Senary
11440504232
8
Octal
453117634
10
Decimal
78421916
12
Duodecimal
2231b078
16
Hexadecimal
4ac9f9c
20
Vigesimal
14a2efg
36
Base36
1aouqk
md5
dbf36551ae739e59cc6c00746c73ca62
sha1
a21d05415ca41c333d393fbe78ce4787cae743af
sha256
da6ef991bed058bbb8224cd8394b433bc6e8bd15617ed2d41023e84c31adb61e
sha512
2b234232eaed8d0ce193ee360dbee6fcf4f615c7048fc27195d49b706856c6fc8f3f50e3e1c3523bb1c12d05e129f96255e13abd5827be9c7871af0f3595552a
ripemd-160
02959b3d621e9ffa2c6e942b755929e949d33dc5
Diameter
156843832
Circumference
492739430.37207
Area
1.9320785109263E+16
Volume
2.0202306491903E+24
Surface area
7.7283140437053E+16
Circumference
492739430.37207
Perimeter
313687664
Area
6149996909111056
Diagonal
110905337.19448
Surface area
36899981454666336
Volume
4.8229454100657E+23
Space diagonal
135830742.9389
Perimeter
235265748
Area
2.663026778243E+15
Altitude
67915371.469449
Surface area
2.663026778243E+15
Volume
5.6838956745833E+22
Height
36968445.731495