78840385 is an odd 8-digits composite number following 78840384
and preceding 78840386 . In scientific notation, it is written as 7.8840385 × 10^7.
The sum of its digits is 43. It has a total of 4 prime factors and 16 positive divisors.
There are 56259840 positive integers (up to 78840385) that are relatively prime to 78840385.
78840385 has 16 divisors, whose sum is 82798848
The reverse of 78840385 is 58304887
Previous prime number is 197
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
seventy-eight million eight hundred forty thousand three hundred eighty-five
Scientific notation
7.8840385 × 10^7
Engineering notation
7.8840385 × 10^6
Prime Factorization
65 × 47 × 197 × 131
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
78840385
Product of the distinct prime numbers
The prime factorization of 78840385 is 65 × 47 × 197 × 131.
Since it has a total of 4 prime factors.
7 , 2 , 52 , 90 , 40 , 512 , 1560 , 1722 , 76881 , 12124 , 857544 , 117780 , 4454799 , 4701478 , 78126358 , 72041909 , 141408572 , 140855272 , 3887270165 , 6768307817
n×2
157680770
n×3
236521155
n×4
315361540
n×5
394201925
n÷2
39420192.5
n÷3
26280128.333333
n÷3
19710096.25
n÷5
15768077
n2
6215806306948225
n3
4.9005656232523E+23
n4
3.8636248045497E+31
n5
3.0460966708625E+39
2 √n
8879.2108320503
3 √n
428.79486790576
4 √n
94.229564532849
5 √n
37.962057904096
1 , 47 , 65 , 131 , 197 , 3055 , 6157 , 8515 , 9259 , 12805 , 25807 , 400205 , 601835 , 1212929 , 1677455 , 78840385
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
-78840384
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 78840385 can be divided by 16 positive divisors.
The sum of these divisors (counting 78840385) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100101100110000001001000001
3
Ternary
12111100111200021
4
Quaternary
10230300021001
5
Quinary
130140343020
6
Senary
11453453441
8
Octal
454601101
10
Decimal
78840385
12
Duodecimal
224a1281
16
Hexadecimal
4b30241
20
Vigesimal
14cf0j5
36
Base36
1axtmp
md5
bd6b9992c3ebccb87f39a28d384c26be
sha1
57424ccdef4726ac6a6a0a518a770fdc1ff73202
sha256
ac62a5999f610a8fc9a6df21d031fd6ea1c78795034dc847e534586710bb3298
sha512
009631db8edcccdd379945d6e821498eed7baa8fd4f79b29ac7914996701a887fb0ee799f6574eb2b710f64d07befe1393aba64af8b5baaae9320e864d05fd0b
ripemd-160
69306144fac2836e2070624a250fe1d5e78c0282
Diameter
157680770
Circumference
495368748.64438
Area
1.9527531430046E+16
Volume
2.0527441280592E+24
Surface area
7.8110125720183E+16
Circumference
495368748.64438
Perimeter
315361540
Area
6215806306948225
Diagonal
111497141.72972
Surface area
37294837841689350
Volume
4.9005656232523E+23
Space diagonal
136555552.50829
Perimeter
236521155
Area
2.6915230834103E+15
Altitude
68277776.254146
Surface area
2.6915230834103E+15
Volume
5.7753719730856E+22
Height
37165713.909905