81479078 is an even 8-digits composite number following 81479077
and preceding 81479079 . In scientific notation, it is written as 8.1479078 × 10^7.
The sum of its digits is 44. It has a total of 2 prime factors and 4 positive divisors.
There are 40739538 positive integers (up to 81479078) that are relatively prime to 81479078.
81479078 has 4 divisors, whose sum is 122218620
The reverse of 81479078 is 87097418
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 44
Digital Root 8
Name
eighty-one million four hundred seventy-nine thousand seventy-eight
Scientific notation
8.1479078 × 10^7
Engineering notation
8.1479078 × 10^6
Prime Factorization
2 × 40739539
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81479078
Product of the distinct prime numbers
The prime factorization of 81479078 is 2 × 40739539.
Since it has a total of 2 prime factors.
7 , 10 , 77 , 73 , 894 , 926 , 3993 , 246 , 37450 , 64765 , 349169 , 586150 , 6363698 , 4603864 , 74584838 , 79563464 , 722558516 , 834254012 , 6237982924 , 1976149863
n×2
162958156
n×3
244437234
n×4
325916312
n×5
407395390
n÷2
40739539
n÷3
27159692.666667
n÷3
20369769.5
n÷5
16295815.6
n2
6638840151730084
n3
5.4092657455235E+23
n4
4.4074198560224E+31
n5
3.5911250622759E+39
2 √n
9026.576205849
3 √n
433.52621958626
4 √n
95.008295458076
5 √n
38.212831666939
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
-81479077
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 81479078 can be divided by 4 positive divisors.
The sum of these divisors (counting 81479078) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110110110100010110100110
3
Ternary
12200022120021122
4
Quaternary
10312310112212
5
Quinary
131324312303
6
Senary
12030213542
8
Octal
466642646
10
Decimal
81479078
12
Duodecimal
233542b2
16
Hexadecimal
4db45a6
20
Vigesimal
1594hdi
36
Base36
1cidnq
md5
a8ac4873ff8100aff1329d5c5c5c28ce
sha1
97f0295bcbabaa527b92c2185d0d336913de0ec0
sha256
3bb640221498a4f6331a9203dec9d7b71013d47d9df799fa8dd77f54af4c4416
sha512
cab50eb6cc70fcece252b3e1a92168a6c31df0a24d1d5198e473cde77d464890e9213f98e24db9faa937559fc0b1d356d85e1f020bc829c07cfe6af835fdef6c
ripemd-160
467f5f74feaf9bcd47e8dbc0809f806af11e52e3
Diameter
162958156
Circumference
511948145.73214
Area
2.0856531449032E+16
Volume
2.2658279369935E+24
Surface area
8.3426125796129E+16
Circumference
511948145.73214
Perimeter
325916312
Area
6638840151730084
Diagonal
115228817.15726
Surface area
39833040910380504
Volume
5.4092657455235E+23
Space diagonal
141125902.84987
Perimeter
244437234
Area
2.8747021115312E+15
Altitude
70562951.424934
Surface area
2.8747021115312E+15
Volume
6.3748808164996E+22
Height
38409605.719085