77286987 is an odd 8-digits composite number following 77286986
and preceding 77286988 . In scientific notation, it is written as 7.7286987 × 10^7.
The sum of its digits is 54. It has a total of 4 prime factors and 16 positive divisors.
There are 51129000 positive integers (up to 77286987) that are relatively prime to 77286987.
77286987 has 16 divisors, whose sum is 115378560
The reverse of 77286987 is 78968277
Previous prime number is 131
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 54
Digital Root 9
Name
seventy-seven million two hundred eighty-six thousand nine hundred eighty-seven
Scientific notation
7.7286987 × 10^7
Engineering notation
7.7286987 × 10^6
Prime Factorization
9 × 3 × 131 × 21851
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
77286987
Product of the distinct prime numbers
The prime factorization of 77286987 is 9 × 3 × 131 × 21851.
Since it has a total of 4 prime factors.
8 , 7 , 37 , 8 , 862 , 451 , 8647 , 782 , 83885 , 12918 , 950311 , 136271 , 8800977 , 2694984 , 56840064 , 10027209 , 797344868 , 472099242 , 2347382057 , 6333483326
n×2
154573974
n×3
231860961
n×4
309147948
n×5
386434935
n÷2
38643493.5
n÷3
25762329
n÷3
19321746.75
n÷5
15457397.4
n2
5973278359538169
n3
4.6165668692101E+23
n4
3.5680054360527E+31
n5
2.7576038975213E+39
2 √n
8791.3017807376
3 √n
425.95997441838
4 √n
93.761942069998
5 √n
37.811270934623
1 , 3 , 9 , 27 , 131 , 393 , 1179 , 3537 , 21851 , 65553 , 196659 , 589977 , 2862481 , 8587443 , 25762329 , 77286987
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
-77286986
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 77286987 can be divided by 16 positive divisors.
The sum of these divisors (counting 77286987) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100100110110100111001001011
3
Ternary
12101102120211000
4
Quaternary
10212310321023
5
Quinary
124241140422
6
Senary
11400310043
8
Octal
446647113
10
Decimal
77286987
12
Duodecimal
21a72323
16
Hexadecimal
49b4e4b
20
Vigesimal
1430h97
36
Base36
1a0j0r
md5
dd66bb74e97306cacd652054aad1d830
sha1
d46aeb81c038a6d61a803d5eac46847a460a95eb
sha256
aa7817959ad03d919ff96ce9e1e0a1474f7befc1ea4bb35d01cd080b46d48be9
sha512
3ca30fd1b1af513a52c8781958848bd649ceec5c4d3188608777a442b478a0518e71b3e9da08a2fddb7ede2cf17309f57cccc1391e9dee8a088baa5aa27c733d
ripemd-160
21f8bc186893be19b73c105deaa68abb5cd03896
Diameter
154573974
Circumference
485608461.15458
Area
1.8765607412172E+16
Volume
1.9337830081489E+24
Surface area
7.5062429648688E+16
Circumference
485608461.15458
Perimeter
309147948
Area
5973278359538169
Diagonal
109300305.21035
Surface area
35839670157229014
Volume
4.6165668692101E+23
Space diagonal
133864988.24792
Perimeter
231860961
Area
2.5865054016179E+15
Altitude
66932494.123958
Surface area
2.5865054016179E+15
Volume
5.4406762316993E+22
Height
36433435.070118