77984985 is an odd 8-digits composite number following 77984984
and preceding 77984986 . In scientific notation, it is written as 7.7984985 × 10^7.
The sum of its digits is 57. It has a total of 4 prime factors and 16 positive divisors.
There are 36723456 positive integers (up to 77984985) that are relatively prime to 77984985.
77984985 has 16 divisors, whose sum is 85721088
The reverse of 77984985 is 58948977
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 57
Digital Root 3
Name
seventy-seven million nine hundred eighty-four thousand nine hundred eighty-five
Scientific notation
7.7984985 × 10^7
Engineering notation
7.7984985 × 10^6
Prime Factorization
15 × 871 × 47 × 127
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
77984985
Product of the distinct prime numbers
The prime factorization of 77984985 is 15 × 871 × 47 × 127.
Since it has a total of 4 prime factors.
4 , 4 , 45 , 56 , 687 , 121 , 898 , 1276 , 64583 , 38004 , 725544 , 876851 , 2404716 , 6031006 , 83031701 , 81882889 , 240420181 , 968770437 , 5341527212 , 8261669047
n×2
155969970
n×3
233954955
n×4
311939940
n×5
389924925
n÷2
38992492.5
n÷3
25994995
n÷3
19496246.25
n÷5
15596997
n2
6081657885450225
n3
4.7427799897197E+23
n4
3.6986562635659E+31
n5
2.8843965323434E+39
2 √n
8830.9107684315
3 √n
427.23845018385
4 √n
93.972925720292
5 √n
37.879322139935
1 , 15 , 47 , 127 , 705 , 871 , 1905 , 5969 , 13065 , 40937 , 89535 , 110617 , 614055 , 1659255 , 5198999 , 77984985
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
-77984984
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 77984985 can be divided by 16 positive divisors.
The sum of these divisors (counting 77984985) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100101001011111010011011001
3
Ternary
12102202001021210
4
Quaternary
10221133103121
5
Quinary
124431004420
6
Senary
11423253333
8
Octal
451372331
10
Decimal
77984985
12
Duodecimal
2214a249
16
Hexadecimal
4a5f4d9
20
Vigesimal
1478295
36
Base36
1afhll
md5
e4239adc493234c7eae8ef2624bf9b09
sha1
420492ee7584350d5613967818fee10a93d0aedf
sha256
782e3a53c2063fa52977380ca1692e5ca63bfb14be6ef63374bbfd8dda5e1c9d
sha512
4ec5170599aa1d7601e564a59864dd5332131642b28c89148d2c3a540623a9b5d3d62e7aa6a71c486db0851f5449e56812e972d04c3415912f9809aa6d3dd4de
ripemd-160
cc404dbc9759949866c54f571f2aecda2692f818
Diameter
155969970
Circumference
489994111.93262
Area
1.9106091734577E+16
Volume
1.9866510364395E+24
Surface area
7.6424366938307E+16
Circumference
489994111.93262
Perimeter
311939940
Area
6081657885450225
Diagonal
110287423.44846
Surface area
36489947312701350
Volume
4.7427799897197E+23
Space diagonal
135073956.2475
Perimeter
233954955
Area
2.6334351129629E+15
Altitude
67536978.123748
Surface area
2.6334351129629E+15
Volume
5.5894198206777E+22
Height
36762474.482821