77688728 is an even 8-digits composite number following 77688727
and preceding 77688729 . In scientific notation, it is written as 7.7688728 × 10^7.
The sum of its digits is 53. It has a total of 6 prime factors and 32 positive divisors.
There are 34698240 positive integers (up to 77688728) that are relatively prime to 77688728.
77688728 has 32 divisors, whose sum is 161938560
The reverse of 77688728 is 82788677
Previous prime number is 31
Is Prime? no
Number parity even
Number length 8
Sum of Digits 53
Digital Root 8
Name
seventy-seven million six hundred eighty-eight thousand seven hundred twenty-eight
Scientific notation
7.7688728 × 10^7
Engineering notation
7.7688728 × 10^6
Prime Factorization
2 × 2 × 2 × 13 × 31 × 24097
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
19422182
Product of the distinct prime numbers
The prime factorization of 77688728 is 2 × 2 × 2 × 13 × 31 × 24097.
Since it has a total of 6 prime factors.
1 , 7 , 3 , 55 , 788 , 608 , 9588 , 9183 , 11740 , 95330 , 438121 , 34903 , 3364462 , 8688000 , 77221753 , 16474982 , 634733536 , 121600368 , 2938599697 , 6521742026
n×2
155377456
n×3
233066184
n×4
310754912
n×5
388443640
n÷2
38844364
n÷3
25896242.666667
n÷3
19422182
n÷5
15537745.6
n2
6035538458257984
n3
4.6889330561714E+23
n4
3.6427724481111E+31
n5
2.830023578872E+39
2 √n
8814.120943123
3 √n
426.69675189333
4 √n
93.883549906909
5 √n
37.850498371292
1 , 2 , 4 , 8 , 13 , 26 , 31 , 52 , 62 , 104 , 124 , 248 , 403 , 806 , 1612 , 3224 , 24097 , 48194 , 96388 , 192776 , 313261 , 626522 , 747007 , 1253044 , 1494014 , 2506088 , 2988028 , 5976056 , 9711091 , 19422182 , 38844364 , 77688728
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-77688727
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 77688728 can be divided by 32 positive divisors.
The sum of these divisors (counting 77688728) is 1, the average is 0.03125.
Base
System
Value
2
Binary
100101000010110111110011000
3
Ternary
12102011222220022
4
Quaternary
10220112332120
5
Quinary
124342014403
6
Senary
11413050012
8
Octal
450267630
10
Decimal
77688728
12
Duodecimal
22026908
16
Hexadecimal
4a16f98
20
Vigesimal
145b1g8
36
Base36
1a9508
md5
b1331ab6fccfa0dae24cd13af1f5b5aa
sha1
20cdb0ef36bdd42a27ef7816d873f04e023520e4
sha256
7c020e8a0080b834ed50c6d7ffd6125b2c67a4214fee0622f23ff0f030abd0c7
sha512
946d161fe7778e653b39967ce1319ff758b3992554512b941f8c4bced659c5c43576bc34f2a19b3b6f77a27a1d29c3bebccd9af4267d683c4a6cc976739519d6
ripemd-160
352fe06f984d156c97fc4a0c1552301d12b75e0e
Diameter
155377456
Circumference
488132674.30307
Area
1.8961203280922E+16
Volume
1.964095685659E+24
Surface area
7.5844813123688E+16
Circumference
488132674.30307
Perimeter
310754912
Area
6035538458257984
Diagonal
109868452.78111
Surface area
36213230749547904
Volume
4.6889330561714E+23
Space diagonal
134560824.0714
Perimeter
233066184
Area
2.6134648151847E+15
Altitude
67280412.035699
Surface area
2.6134648151847E+15
Volume
5.5259606009143E+22
Height
36622817.593705