78861 is an odd 5-digits composite number following 78860
and preceding 78862 . In scientific notation, it is written as 7.8861 × 10^4.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 51840 positive integers (up to 78861) that are relatively prime to 78861.
78861 has 8 divisors, whose sum is 106624
The reverse of 78861 is 16887
Previous prime number is 97
Is Prime? no
Number parity odd
Number length 5
Sum of Digits 30
Digital Root 3
Name
seventy-eight thousand eight hundred sixty-one
Scientific notation
7.8861 × 10^4
Engineering notation
7.8861 × 10^3
Prime Factorization
3 × 97 × 271
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
78861
Product of the distinct prime numbers
The prime factorization of 78861 is 3 × 97 × 271.
Since it has a total of 3 prime factors.
1 , 1 , 20 , 98 , 512 , 29 , 5220 , 7206 , 11661 , 85630 , 530929 , 657089 , 7316378 , 1505516 , 59850533 , 43455458 , 518159426 , 106025616 , 6169274524 , 2264187206
n×2
157722
n×3
236583
n×4
315444
n×5
394305
n÷2
39430.5
n÷3
26287
n÷3
19715.25
n÷5
15772.2
n2
6219057321
n3
490441079391381
n4
3.8676673961884E+19
n5
3.0500811853081E+24
2 √n
280.82200768458
3 √n
42.883223807614
4 √n
16.757744707585
5 √n
9.5361364352672
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-78860
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 78861 can be divided by 8 positive divisors.
The sum of these divisors (counting 78861) is 1, the average is 0.125.
Base
System
Value
2
Binary
10011010000001101
3
Ternary
11000011210
4
Quaternary
103100031
5
Quinary
10010421
6
Senary
1405033
8
Octal
232015
10
Decimal
78861
12
Duodecimal
39779
16
Hexadecimal
1340d
20
Vigesimal
9h31
36
Base36
1oul
md5
16bdb2990ff1ddef77c8cad36554a548
sha1
7d0c06374c5cce0c8c3c027de40a91c8607f3ad2
sha256
d78453231e4349e40109797579fbe680ecda69d0f93e4b40d0b2ff3b2e51f80b
sha512
34065d27a6f2ffd495a8f89dd4c5f823cc9051daa26ce205805807a2920d843b28379cd289863582ec190948dec51eb9a8742a32c2fa0e4b94dcf6adc13ef628
ripemd-160
f7ecaf030b8b0e6ae9c2bde2cad2cd12bb082248
Diameter
157722
Circumference
495498.27650949
Area
19537744791.907
Volume
2.0543547893795E+15
Surface area
78150979167.63
Circumference
495498.27650949
Perimeter
315444
Area
6219057321
Diagonal
111526.2957423
Surface area
37314343926
Volume
490441079391381
Space diagonal
136591.25873569
Perimeter
236583
Area
2692930813.7888
Altitude
68295.629367845
Surface area
2692930813.7888
Volume
57799035501683
Height
37175.431914102