78906890 is an even 8-digits composite number following 78906889
and preceding 78906891 . In scientific notation, it is written as 7.8906890 × 10^7.
The sum of its digits is 47. It has a total of 4 prime factors and 16 positive divisors.
There are 30891024 positive integers (up to 78906890) that are relatively prime to 78906890.
78906890 has 16 divisors, whose sum is 145055232
The reverse of 78906890 is 09860987
Previous prime number is 47
Is Prime? no
Number parity even
Number length 8
Sum of Digits 47
Digital Root 2
Name
seventy-eight million nine hundred six thousand eight hundred ninety
Scientific notation
7.8906890 × 10^7
Engineering notation
7.8906890 × 10^6
Prime Factorization
2 × 5 × 47 × 167887
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
78906890
Product of the distinct prime numbers
The prime factorization of 78906890 is 2 × 5 × 47 × 167887.
Since it has a total of 4 prime factors.
10 , 9 , 10 , 94 , 400 , 568 , 2543 , 2816 , 772 , 5259 , 333637 , 593947 , 421687 , 4987465 , 61611208 , 9206813 , 520107575 , 625415778 , 4824948743 , 4128809612
n×2
157813780
n×3
236720670
n×4
315627560
n×5
394534450
n÷2
39453445
n÷3
26302296.666667
n÷3
19726722.5
n÷5
15781378
n2
6226297289472100
n3
4.9129775532767E+23
n4
3.8766777936888E+31
n5
3.0589658823204E+39
2 √n
8882.9550263412
3 √n
428.91540252786
4 √n
94.249429846239
5 √n
37.968460245305
1 , 2 , 5 , 10 , 47 , 94 , 235 , 470 , 167887 , 335774 , 839435 , 1678870 , 7890689 , 15781378 , 39453445 , 78906890
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
-78906889
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 78906890 can be divided by 16 positive divisors.
The sum of these divisors (counting 78906890) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100101101000000011000001010
3
Ternary
12111110212220102
4
Quaternary
10231000120022
5
Quinary
130200010030
6
Senary
11455125402
8
Octal
455003012
10
Decimal
78906890
12
Duodecimal
22513862
16
Hexadecimal
4b4060a
20
Vigesimal
14d374a
36
Base36
1az8y2
md5
c06aad79eede89f649315fe59aa0330a
sha1
2299a6df2289fd9b10a2c447a0218d4171d732d9
sha256
a9c983611eb89376348f1e7558135a41075e7dd085e3f8cf49ccb62f01307e75
sha512
8bcff0b75e29b1f22e3d4011edabac63fadf2435bc54220e23248d07567408caf311ce3cf9a09266d65b3bf92329e1c4a281d457b92f96fa16704d64fa08296c
ripemd-160
abca7a5bd185413cfaa6d6e8780c428b1c00e1ae
Diameter
157813780
Circumference
495786611.88324
Area
1.9560489823672E+16
Volume
2.0579432251501E+24
Surface area
7.8241959294686E+16
Circumference
495786611.88324
Perimeter
315627560
Area
6226297289472100
Diagonal
111591194.00268
Surface area
37357783736832600
Volume
4.9129775532767E+23
Space diagonal
136670742.54725
Perimeter
236720670
Area
2.6960658120985E+15
Altitude
68335371.273624
Surface area
2.6960658120985E+15
Volume
5.7899995728988E+22
Height
37197064.667561