77981936 is an even 8-digits composite number following 77981935
and preceding 77981937 . In scientific notation, it is written as 7.7981936 × 10^7.
The sum of its digits is 50. It has a total of 6 prime factors and 20 positive divisors.
There are 38877696 positive integers (up to 77981936) that are relatively prime to 77981936.
77981936 has 20 divisors, whose sum is 151528992
The reverse of 77981936 is 63918977
Previous prime number is 353
Is Prime? no
Number parity even
Number length 8
Sum of Digits 50
Digital Root 5
Name
seventy-seven million nine hundred eighty-one thousand nine hundred thirty-six
Scientific notation
7.7981936 × 10^7
Engineering notation
7.7981936 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 353 × 13807
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
9747742
Product of the distinct prime numbers
The prime factorization of 77981936 is 2 × 2 × 2 × 2 × 353 × 13807.
Since it has a total of 6 prime factors.
3 , 10 , 14 , 26 , 373 , 891 , 6042 , 9354 , 86275 , 95630 , 268128 , 856158 , 6738394 , 3092027 , 88265664 , 52326718 , 111521304 , 423000688 , 7931031785 , 9385301570
n×2
155963872
n×3
233945808
n×4
311927744
n×5
389909680
n÷2
38990968
n÷3
25993978.666667
n÷3
19495484
n÷5
15596387.2
n2
6081182342308096
n3
4.742223722222E+23
n4
3.69807786804E+31
n5
2.8838327162851E+39
2 √n
8830.7381344936
3 √n
427.23288215897
4 √n
93.972007185617
5 √n
37.879025939687
1 , 2 , 4 , 8 , 16 , 353 , 706 , 1412 , 2824 , 5648 , 13807 , 27614 , 55228 , 110456 , 220912 , 4873871 , 9747742 , 19495484 , 38990968 , 77981936
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-77981935
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 77981936 can be divided by 20 positive divisors.
The sum of these divisors (counting 77981936) is 1, the average is 0.05.
Base
System
Value
2
Binary
100101001011110100011110000
3
Ternary
12102201220002212
4
Quaternary
10221132203300
5
Quinary
124430410221
6
Senary
11423231252
8
Octal
451364360
10
Decimal
77981936
12
Duodecimal
22148528
16
Hexadecimal
4a5e8f0
20
Vigesimal
1477egg
36
Base36
1aff8w
md5
d8fffedbd85ae58384984a4cc33fe930
sha1
30750809f3f8f7e524517cb203173f80a9ae265c
sha256
beedd76d646425a41c6515742d0da1d0f04a791dffce3cdb8dfef4e7767deb60
sha512
57b698a3b4c54ae430da37399e764a992d162fc2a59f361f3feb8258decba6d95a5d4db5d000b85b42b576a8b0f1f44941efdc38a0e245b6b749d8fed19b1235
ripemd-160
948a6b96176eba9b49e9fedeb626e5dd91ab6cbe
Diameter
155963872
Circumference
489974954.50062
Area
1.9104597771735E+16
Volume
1.9864180276549E+24
Surface area
7.641839108694E+16
Circumference
489974954.50062
Perimeter
311927744
Area
6081182342308096
Diagonal
110283111.51131
Surface area
36487094053848576
Volume
4.742223722222E+23
Space diagonal
135068675.22458
Perimeter
233945808
Area
2.6332291967421E+15
Altitude
67534337.612292
Surface area
2.6332291967421E+15
Volume
5.5887642531448E+22
Height
36761037.170437