78889881 is an odd 8-digits composite number following 78889880
and preceding 78889882 . In scientific notation, it is written as 7.8889881 × 10^7.
The sum of its digits is 57. It has a total of 5 prime factors and 32 positive divisors.
There are 42410304 positive integers (up to 78889881) that are relatively prime to 78889881.
78889881 has 32 divisors, whose sum is 127421440
The reverse of 78889881 is 18898887
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 57
Digital Root 3
Name
seventy-eight million eight hundred eighty-nine thousand eight hundred eighty-one
Scientific notation
7.8889881 × 10^7
Engineering notation
7.8889881 × 10^6
Prime Factorization
3 × 19 × 163 × 7 × 1213
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
78889881
Product of the distinct prime numbers
The prime factorization of 78889881 is 3 × 19 × 163 × 7 × 1213.
Since it has a total of 5 prime factors.
6 , 9 , 82 , 65 , 988 , 38 , 8623 , 6940 , 80747 , 3544 , 755381 , 53600 , 3841913 , 4588660 , 47336599 , 86980707 , 998962431 , 325880575 , 300536317 , 1569650046
n×2
157779762
n×3
236669643
n×4
315559524
n×5
394449405
n÷2
39444940.5
n÷3
26296627
n÷3
19722470.25
n÷5
15777976.2
n2
6223613324194161
n3
4.9098011453569E+23
n4
3.8733362809087E+31
n5
3.0556703827387E+39
2 √n
8881.9975793737
3 √n
428.88458161839
4 √n
94.244350384379
5 √n
37.966823224176
1 , 3 , 7 , 19 , 21 , 57 , 133 , 163 , 399 , 489 , 1141 , 1213 , 3097 , 3423 , 3639 , 8491 , 9291 , 21679 , 23047 , 25473 , 65037 , 69141 , 161329 , 197719 , 483987 , 593157 , 1384033 , 3756661 , 4152099 , 11269983 , 26296627 , 78889881
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
-78889880
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 78889881 can be divided by 32 positive divisors.
The sum of these divisors (counting 78889881) is 1, the average is 0.03125.
Base
System
Value
2
Binary
100101100111100001110011001
3
Ternary
12111110000120110
4
Quaternary
10230330032121
5
Quinary
130143434011
6
Senary
11454514533
8
Octal
454741631
10
Decimal
78889881
12
Duodecimal
22505a49
16
Hexadecimal
4b3c399
20
Vigesimal
14d14e1
36
Base36
1ayvtl
md5
93a0a8b650af03857aa4bb307dc5958c
sha1
784dcea735b937ba347ec827d142ca0222f48940
sha256
8e50ad4dd6f082e7ca999080cf755c278e96698f7b553606e7de4b03fb9b8370
sha512
06c1a12009ebe18548f458b720862dd6ba75d754ef6cc63aeedd732d158e5b5b2129309318f45aedec2fff1cf2ab7e52515b4854dbfac2ea517f2fcd6bcb8daa
ripemd-160
b3fbad600978fe3509cfac6e8153d1e058c99224
Diameter
157779762
Circumference
495679741.18435
Area
1.9552057898072E+16
Volume
2.056612694512E+24
Surface area
7.8208231592288E+16
Circumference
495679741.18435
Perimeter
315559524
Area
6223613324194161
Diagonal
111567139.6442
Surface area
37341679945164966
Volume
4.9098011453569E+23
Space diagonal
136641282.09506
Perimeter
236669643
Area
2.6949036210417E+15
Altitude
68320641.047531
Surface area
2.6949036210417E+15
Volume
5.7862561402656E+22
Height
37189046.548067