77984987 is an odd 8-digits composite number following 77984986
and preceding 77984988 . In scientific notation, it is written as 7.7984987 × 10^7.
The sum of its digits is 59. It has a total of 2 prime factors and 4 positive divisors.
There are 73880496 positive integers (up to 77984987) that are relatively prime to 77984987.
77984987 has 4 divisors, whose sum is 82089480
The reverse of 77984987 is 78948977
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 59
Digital Root 5
Name
seventy-seven million nine hundred eighty-four thousand nine hundred eighty-seven
Scientific notation
7.7984987 × 10^7
Engineering notation
7.7984987 × 10^6
Prime Factorization
19 × 4104473
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
77984987
Product of the distinct prime numbers
The prime factorization of 77984987 is 19 × 4104473.
Since it has a total of 2 prime factors.
7 , 2 , 64 , 72 , 508 , 544 , 3421 , 7564 , 48038 , 76183 , 180362 , 847279 , 5377721 , 8856646 , 28139480 , 28644253 , 345067475 , 63480655 , 4636103087 , 2928557959
n×2
155969974
n×3
233954961
n×4
311939948
n×5
389924935
n÷2
38992493.5
n÷3
25994995.666667
n÷3
19496246.75
n÷5
15596997.4
n2
6081658197390169
n3
4.7427803546192E+23
n4
3.6986566429883E+31
n5
2.8843969022091E+39
2 √n
8830.9108816701
3 √n
427.23845383617
4 √n
93.972926322799
5 √n
37.879322334225
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
-77984986
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 77984987 can be divided by 4 positive divisors.
The sum of these divisors (counting 77984987) is 1, the average is 0.25.
Base
System
Value
2
Binary
100101001011111010011011011
3
Ternary
12102202001021212
4
Quaternary
10221133103123
5
Quinary
124431004422
6
Senary
11423253335
8
Octal
451372333
10
Decimal
77984987
12
Duodecimal
2214a24b
16
Hexadecimal
4a5f4db
20
Vigesimal
1478297
36
Base36
1afhln
md5
9bfb8841295e7e8030d5b2c10e666aa0
sha1
30e380538d12ff2543570873f0953fb2c763ba38
sha256
5c7b2fe42fcd0f7d4a979790550c6fd6ce4b9a2af6c482caa6caff162455cee8
sha512
45537f094023d3343f0bccebe8ccf4df631fbc9af7e04165c52242abe522f0c3c1697cfcd2f413dbc4f5243d0d40a2d010a90710a7be20979d013edfa2144fe9
ripemd-160
6449140976ee49d01b523f817de283883f30ce3e
Diameter
155969974
Circumference
489994124.49899
Area
1.9106092714565E+16
Volume
1.9866511892882E+24
Surface area
7.642437085826E+16
Circumference
489994124.49899
Perimeter
311939948
Area
6081658197390169
Diagonal
110287426.27689
Surface area
36489949184341014
Volume
4.7427803546192E+23
Space diagonal
135073959.7116
Perimeter
233954961
Area
2.6334352480369E+15
Altitude
67536979.855799
Surface area
2.6334352480369E+15
Volume
5.5894202507159E+22
Height
36762475.42563