78889681 is an odd 8-digits composite number following 78889680
and preceding 78889682 . In scientific notation, it is written as 7.8889681 × 10^7.
The sum of its digits is 55. It has a total of 2 prime factors and 4 positive divisors.
There are 72821232 positive integers (up to 78889681) that are relatively prime to 78889681.
78889681 has 4 divisors, whose sum is 84958132
The reverse of 78889681 is 18698887
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 55
Digital Root 1
Name
seventy-eight million eight hundred eighty-nine thousand six hundred eighty-one
Scientific notation
7.8889681 × 10^7
Engineering notation
7.8889681 × 10^6
Prime Factorization
13 × 6068437
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
78889681
Product of the distinct prime numbers
The prime factorization of 78889681 is 13 × 6068437.
Since it has a total of 2 prime factors.
3 , 4 , 80 , 2 , 623 , 374 , 8374 , 8694 , 66229 , 15018 , 175527 , 986090 , 6778621 , 7604115 , 24581416 , 57012469 , 86231213 , 299388520 , 8415748387 , 8448951197
n×2
157779362
n×3
236669043
n×4
315558724
n×5
394448405
n÷2
39444840.5
n÷3
26296560.333333
n÷3
19722420.25
n÷5
15777936.2
n2
6223581768281761
n3
4.9097638037716E+23
n4
3.8732970026489E+31
n5
3.0556316495723E+39
2 √n
8881.986320638
3 √n
428.88421918497
4 √n
94.244290652739
5 √n
37.966803973615
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
-78889680
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 78889681 can be divided by 4 positive divisors.
The sum of these divisors (counting 78889681) is 1, the average is 0.25.
Base
System
Value
2
Binary
100101100111100001011010001
3
Ternary
12111110000022001
4
Quaternary
10230330023101
5
Quinary
130143432211
6
Senary
11454514001
8
Octal
454741321
10
Decimal
78889681
12
Duodecimal
22505901
16
Hexadecimal
4b3c2d1
20
Vigesimal
14d1441
36
Base36
1ayvo1
md5
71ab35d4a441eb8d9486ccba93168d30
sha1
87a4aa7ba9838e00a855c9610ae701e2bda1198f
sha256
a0986cf13674e2c5c3a356113d79847d35e2a99212a4fe2f4907451c82934c1c
sha512
3514b5b5b12ab715c3924aa33b8efacdfde3ecdc6cac7158e761ceb8988c127cde88d4b09c9ab8009879044de863fc345e0dd379416cf033ddc46ba445c22fb5
ripemd-160
3d8736d6c6c3119332629e51b0b8c3f9cc90e0a6
Diameter
157779362
Circumference
495678484.54728
Area
1.9551958762249E+16
Volume
2.0565970529053E+24
Surface area
7.8207835048997E+16
Circumference
495678484.54728
Perimeter
315558724
Area
6223581768281761
Diagonal
111566856.80149
Surface area
37341490609690566
Volume
4.9097638037716E+23
Space diagonal
136640935.6849
Perimeter
236669043
Area
2.6948899569308E+15
Altitude
68320467.842451
Surface area
2.6948899569308E+15
Volume
5.7862121327853E+22
Height
37188952.267162