78889421 is an odd 8-digits composite number following 78889420
and preceding 78889422 . In scientific notation, it is written as 7.8889421 × 10^7.
The sum of its digits is 47. It has a total of 4 prime factors and 16 positive divisors.
There are 71000064 positive integers (up to 78889421) that are relatively prime to 78889421.
78889421 has 16 divisors, whose sum is 87111024
The reverse of 78889421 is 12498887
Previous prime number is 97
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
seventy-eight million eight hundred eighty-nine thousand four hundred twenty-one
Scientific notation
7.8889421 × 10^7
Engineering notation
7.8889421 × 10^6
Prime Factorization
13 × 73 × 97 × 857
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
78889421
Product of the distinct prime numbers
The prime factorization of 78889421 is 13 × 73 × 97 × 857.
Since it has a total of 4 prime factors.
4 , 3 , 92 , 33 , 136 , 205 , 3188 , 4093 , 31307 , 13772 , 411564 , 376933 , 2339997 , 6861096 , 71657228 , 60867927 , 982767941 , 205156467 , 693934288 , 7197516569
n×2
157778842
n×3
236668263
n×4
315557684
n×5
394447105
n÷2
39444710.5
n÷3
26296473.666667
n÷3
19722355.25
n÷5
15777884.2
n2
6223540745715241
n3
4.9097152599938E+23
n4
3.8732459413578E+31
n5
3.0555812970432E+39
2 √n
8881.9716842602
3 √n
428.8837480206
4 √n
94.244213001437
5 √n
37.966778947827
1 , 13 , 73 , 97 , 857 , 949 , 1261 , 7081 , 11141 , 62561 , 83129 , 92053 , 813293 , 1080677 , 6068417 , 78889421
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
-78889420
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 78889421 can be divided by 16 positive divisors.
The sum of these divisors (counting 78889421) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100101100111100000111001101
3
Ternary
12111102222221102
4
Quaternary
10230330013031
5
Quinary
130143430141
6
Senary
11454512445
8
Octal
454740715
10
Decimal
78889421
12
Duodecimal
22505725
16
Hexadecimal
4b3c1cd
20
Vigesimal
14d13b1
36
Base36
1ayvgt
md5
feb714df363b431f4cf979396d20b572
sha1
b4b8ef954365f9cd7fb787272d448979e8c1b99b
sha256
ab241f822025816f715fc58b61681457d70779b419c7f0e7292a0930440e1422
sha512
020632b95020bd5dbe0b1cc4ce618faecc10256d10921ddd93ef66425f841ae73fbea2a48a6fe0c2b8dbeae4383ba3c9b2afb0b36d802e728649a8ca912952e5
ripemd-160
7701db7c3907ab65e9a9ca53f8f610fad155d415
Diameter
157778842
Circumference
495676850.9191
Area
1.9551829886056E+16
Volume
2.0565767189352E+24
Surface area
7.8207319544223E+16
Circumference
495676850.9191
Perimeter
315557684
Area
6223540745715241
Diagonal
111566489.10596
Surface area
37341244474291446
Volume
4.9097152599938E+23
Space diagonal
136640485.35169
Perimeter
236668263
Area
2.6948721936385E+15
Altitude
68320242.675846
Surface area
2.6948721936385E+15
Volume
5.7861549233945E+22
Height
37188829.701987