78457989 is an odd 8-digits composite number following 78457988
and preceding 78457990 . In scientific notation, it is written as 7.8457989 × 10^7.
The sum of its digits is 57. It has a total of 2 prime factors and 4 positive divisors.
There are 52305324 positive integers (up to 78457989) that are relatively prime to 78457989.
78457989 has 4 divisors, whose sum is 104610656
The reverse of 78457989 is 98975487
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 57
Digital Root 3
Name
seventy-eight million four hundred fifty-seven thousand nine hundred eighty-nine
Scientific notation
7.8457989 × 10^7
Engineering notation
7.8457989 × 10^6
Prime Factorization
3 × 26152663
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
78457989
Product of the distinct prime numbers
The prime factorization of 78457989 is 3 × 26152663.
Since it has a total of 2 prime factors.
9 , 10 , 100 , 42 , 300 , 216 , 5682 , 671 , 61393 , 33038 , 427909 , 319181 , 8193879 , 1224673 , 65501527 , 91113528 , 785447983 , 29730186 , 4756486923 , 5246466171
n×2
156915978
n×3
235373967
n×4
313831956
n×5
392289945
n÷2
39228994.5
n÷3
26152663
n÷3
19614497.25
n÷5
15691597.8
n2
6155656037924121
n3
4.8296039371123E+23
n4
3.7892101257232E+31
n5
2.9729380636268E+39
2 √n
8857.6514381635
3 √n
428.10048918584
4 √n
94.115096760103
5 √n
37.925161115978
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-78457988
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 78457989 can be divided by 4 positive divisors.
The sum of these divisors (counting 78457989) is 1, the average is 0.25.
Base
System
Value
2
Binary
100101011010010110010000101
3
Ternary
12110122002010110
4
Quaternary
10223102302011
5
Quinary
130041123424
6
Senary
11441343233
8
Octal
453226205
10
Decimal
78457989
12
Duodecimal
22337b19
16
Hexadecimal
4ad2c85
20
Vigesimal
14a74j9
36
Base36
1apmkl
md5
57e16129d983e91fbc79a4889ed8dd6e
sha1
cce939a451035835b69ebe7347f919c143393841
sha256
404fee63241b4bb7909c0f19b8bbe2ad00989575c983ebf49b1b09b20dbe5388
sha512
c6db118c5e89aee1a16b4d5dfb456a3bdbddaefcf030eac390d6c301eb69b0a55d6d2bd52e0f8385a33405adcf0c2976d01de21e4e495596c6adda1b256d07e3
ripemd-160
63914abcb590607566e284ce2398731eeaed5e9f
Diameter
156915978
Circumference
492966083.71566
Area
1.9338563786768E+16
Volume
2.0230197664774E+24
Surface area
7.7354255147072E+16
Circumference
492966083.71566
Perimeter
313831956
Area
6155656037924121
Diagonal
110956352.12032
Surface area
36933936227544726
Volume
4.8296039371123E+23
Space diagonal
135893223.20768
Perimeter
235373967
Area
2.6654772529007E+15
Altitude
67946611.60384
Surface area
2.6654772529007E+15
Volume
5.6917428239623E+22
Height
36985450.706773