77691921 is an odd 8-digits composite number following 77691920
and preceding 77691922 . In scientific notation, it is written as 7.7691921 × 10^7.
The sum of its digits is 42. It has a total of 5 prime factors and 32 positive divisors.
There are 46725120 positive integers (up to 77691921) that are relatively prime to 77691921.
77691921 has 32 divisors, whose sum is 114306048
The reverse of 77691921 is 12919677
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
seventy-seven million six hundred ninety-one thousand nine hundred twenty-one
Scientific notation
7.7691921 × 10^7
Engineering notation
7.7691921 × 10^6
Prime Factorization
3 × 17 × 313 × 31 × 157
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
77691921
Product of the distinct prime numbers
The prime factorization of 77691921 is 3 × 17 × 313 × 31 × 157.
Since it has a total of 5 prime factors.
9 , 1 , 48 , 35 , 359 , 424 , 1099 , 542 , 11423 , 6257 , 6368 , 622237 , 2835121 , 3505099 , 68221351 , 13488559 , 538591834 , 257262321 , 5179326388 , 3827999891
n×2
155383842
n×3
233075763
n×4
310767684
n×5
388459605
n÷2
38845960.5
n÷3
25897307
n÷3
19422980.25
n÷5
15538384.2
n2
6036034588670241
n3
4.6895112241624E+23
n4
3.6433713555624E+31
n5
2.8306051953001E+39
2 √n
8814.3020710661
3 √n
426.70259754644
4 √n
93.884514543486
5 √n
37.850809496619
1 , 3 , 17 , 31 , 51 , 93 , 157 , 313 , 471 , 527 , 939 , 1581 , 2669 , 4867 , 5321 , 8007 , 9703 , 14601 , 15963 , 29109 , 49141 , 82739 , 147423 , 164951 , 248217 , 494853 , 835397 , 1523371 , 2506191 , 4570113 , 25897307 , 77691921
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
-77691920
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 77691921 can be divided by 32 positive divisors.
The sum of these divisors (counting 77691921) is 1, the average is 0.03125.
Base
System
Value
2
Binary
100101000010111110000010001
3
Ternary
12102012011021120
4
Quaternary
10220113300101
5
Quinary
124342120141
6
Senary
11413112453
8
Octal
450276021
10
Decimal
77691921
12
Duodecimal
22028729
16
Hexadecimal
4a17c11
20
Vigesimal
145b9g1
36
Base36
1a97gx
md5
8537212ba2a1a00c11eabd27ff592a39
sha1
7ff4e1d16d8ca71e40173dbc0471143957159e76
sha256
755340b2329a7ac1a97de394433c539632f464272246a151a158a1afb1906591
sha512
b3b2723130e822ec77e662e03a99cfb32462f37693132c592ffae782522bd2e5a262f89e85c012a61a28b3fb035d278bc9cbbd81f4b01e8208fa19e5b875691a
ripemd-160
a2755c539cb6ba1af194d4b2ea9cd88be57c8201
Diameter
155383842
Circumference
488152736.51376
Area
1.896276192058E+16
Volume
1.9643378681007E+24
Surface area
7.5851047682321E+16
Circumference
488152736.51376
Perimeter
310767684
Area
6036034588670241
Diagonal
109872968.36502
Surface area
36216207532021446
Volume
4.6895112241624E+23
Space diagonal
134566354.50963
Perimeter
233075763
Area
2.613679645955E+15
Altitude
67283177.254814
Surface area
2.613679645955E+15
Volume
5.5266419784261E+22
Height
36624322.78834