78996891 is an odd 8-digits composite number following 78996890
and preceding 78996892 . In scientific notation, it is written as 7.8996891 × 10^7.
The sum of its digits is 57. It has a total of 4 prime factors and 16 positive divisors.
There are 50591520 positive integers (up to 78996891) that are relatively prime to 78996891.
78996891 has 16 divisors, whose sum is 109556480
The reverse of 78996891 is 19869987
Previous prime number is 61
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 57
Digital Root 3
Name
seventy-eight million nine hundred ninety-six thousand eight hundred ninety-one
Scientific notation
7.8996891 × 10^7
Engineering notation
7.8996891 × 10^6
Prime Factorization
3 × 43 × 61 × 10039
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
78996891
Product of the distinct prime numbers
The prime factorization of 78996891 is 3 × 43 × 61 × 10039.
Since it has a total of 4 prime factors.
10 , 8 , 83 , 79 , 259 , 503 , 683 , 6460 , 39914 , 22508 , 628873 , 40364 , 833795 , 2919910 , 15566802 , 39062261 , 239256452 , 568416202 , 9022936785 , 2507431192
n×2
157993782
n×3
236990673
n×4
315987564
n×5
394984455
n÷2
39498445.5
n÷3
26332297
n÷3
19749222.75
n÷5
15799378.2
n2
6240508787665881
n3
4.9298079248378E+23
n4
3.8943949928935E+31
n5
3.0764509676455E+39
2 √n
8888.0195206806
3 √n
429.07841384275
4 √n
94.276293524304
5 √n
37.97711764239
1 , 3 , 43 , 61 , 129 , 183 , 2623 , 7869 , 10039 , 30117 , 431677 , 612379 , 1295031 , 1837137 , 26332297 , 78996891
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-78996890
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 78996891 can be divided by 16 positive divisors.
The sum of these divisors (counting 78996891) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100101101010110010110011011
3
Ternary
12111122110100210
4
Quaternary
10231112112123
5
Quinary
130210400031
6
Senary
11501102203
8
Octal
455262633
10
Decimal
78996891
12
Duodecimal
22557963
16
Hexadecimal
4b5659b
20
Vigesimal
14dec4b
36
Base36
1b16e3
md5
3f38980e8a84fe2545c95b79cca808a4
sha1
1a006a9ac1bb7e3651562b6164fe7e6a1a749ea4
sha256
073defcb93ec687ca825d0d0f5d7143e31bccead9c4fdc0b133c393edafed924
sha512
4ba16b5a04a580484ea7c53fcff1565337627327370fced3bb7c0756b0faf5f7a7e06e05105509e3e49c062a7515d5728097c30562be8b96a8ea792fa47224bc
ripemd-160
8816cea2b6b5093bf4721f5bb9bdd3ede85c2cb5
Diameter
157993782
Circumference
496352104.84407
Area
1.9605136561994E+16
Volume
2.0649931147039E+24
Surface area
7.8420546247975E+16
Circumference
496352104.84407
Perimeter
315987564
Area
6240508787665881
Diagonal
111718474.63751
Surface area
37443052725995286
Volume
4.9298079248378E+23
Space diagonal
136826628.85198
Perimeter
236990673
Area
2.7022195713293E+15
Altitude
68413314.42599
Surface area
2.7022195713293E+15
Volume
5.809834356E+22
Height
37239491.545836