77998021 is an odd 8-digits composite number following 77998020
and preceding 77998022 . In scientific notation, it is written as 7.7998021 × 10^7.
The sum of its digits is 43. It has a total of 2 prime factors and 4 positive divisors.
There are 73892520 positive integers (up to 77998021) that are relatively prime to 77998021.
77998021 has 4 divisors, whose sum is 78214444
The reverse of 77998021 is 12089977
Previous prime number is 361
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
seventy-seven million nine hundred ninety-eight thousand twenty-one
Scientific notation
7.7998021 × 10^7
Engineering notation
7.7998021 × 10^6
Prime Factorization
361 × 216061
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
77998021
Product of the distinct prime numbers
The prime factorization of 77998021 is 361 × 216061.
Since it has a total of 2 prime factors.
5 , 6 , 96 , 54 , 507 , 210 , 9135 , 4844 , 18144 , 346 , 445140 , 487870 , 6857856 , 9645606 , 27697035 , 30538236 , 20435650 , 654495916 , 4957753772 , 785131249
n×2
155996042
n×3
233994063
n×4
311992084
n×5
389990105
n÷2
38999010.5
n÷3
25999340.333333
n÷3
19499505.25
n÷5
15599604.2
n2
6083691279916441
n3
4.7451588020844E+23
n4
3.7011299589331E+31
n5
2.886808122606E+39
2 √n
8831.6488268047
3 √n
427.26225463858
4 √n
93.976852611718
5 √n
37.880588439671
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
-77998020
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 77998021 can be divided by 4 positive divisors.
The sum of these divisors (counting 77998021) is 1, the average is 0.25.
Base
System
Value
2
Binary
100101001100010011111000101
3
Ternary
12102202201011121
4
Quaternary
10221202133011
5
Quinary
124431414041
6
Senary
11423433541
8
Octal
451423705
10
Decimal
77998021
12
Duodecimal
221558b1
16
Hexadecimal
4a627c5
20
Vigesimal
1479f11
36
Base36
1afrnp
md5
c4d6a805030fd9d7d0ff2f85d8abfb1e
sha1
1be16760f069de4fcb68ad5ea638b1515c6eadd4
sha256
5b15a50f214ad735439b803f3c6c624516a36a40a592f21e19a9ba685a39efbc
sha512
7bd896fb3e1dc8fc72eddb38d51dafee63075acc3a6df34ae9f020dfa73bee9e73561d120d93fe970490ed81a0d9527d21c65907866f174bd68a3cac51d025cc
ripemd-160
1cbb2a9c3c14b0c61927545067ed690210c3ba7d
Diameter
155996042
Circumference
490076019.53628
Area
1.9112479831694E+16
Volume
1.9876474710327E+24
Surface area
7.6449919326775E+16
Circumference
490076019.53628
Perimeter
311992084
Area
6083691279916441
Diagonal
110305859.13646
Surface area
36502147679498646
Volume
4.7451588020844E+23
Space diagonal
135096535.26182
Perimeter
233994063
Area
2.6343155985948E+15
Altitude
67548267.630912
Surface area
2.6343155985948E+15
Volume
5.5922232779349E+22
Height
36768619.712154