77991938 is an even 8-digits composite number following 77991937
and preceding 77991939 . In scientific notation, it is written as 7.7991938 × 10^7.
The sum of its digits is 53. It has a total of 4 prime factors and 16 positive divisors.
There are 36691200 positive integers (up to 77991938) that are relatively prime to 77991938.
77991938 has 16 divisors, whose sum is 120237216
The reverse of 77991938 is 83919977
Previous prime number is 43
Is Prime? no
Number parity even
Number length 8
Sum of Digits 53
Digital Root 8
Name
seventy-seven million nine hundred ninety-one thousand nine hundred thirty-eight
Scientific notation
7.7991938 × 10^7
Engineering notation
7.7991938 × 10^6
Prime Factorization
2 × 3763 × 43 × 241
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
77991938
Product of the distinct prime numbers
The prime factorization of 77991938 is 2 × 3763 × 43 × 241.
Since it has a total of 4 prime factors.
7 , 6 , 68 , 52 , 982 , 192 , 2205 , 9218 , 66695 , 21332 , 898210 , 352238 , 6491094 , 3778742 , 58280027 , 13406373 , 818440571 , 853917285 , 7352392863 , 4243038679
n×2
155983876
n×3
233975814
n×4
311967752
n×5
389959690
n÷2
38995969
n÷3
25997312.666667
n÷3
19497984.5
n÷5
15598387.6
n2
6082742392995844
n3
4.744048675845E+23
n4
3.6999755019549E+31
n5
2.8856825994998E+39
2 √n
8831.304433661
3 √n
427.25114707529
4 √n
93.975020264222
5 √n
37.879997566197
1 , 2 , 43 , 86 , 241 , 482 , 3763 , 7526 , 10363 , 20726 , 161809 , 323618 , 906883 , 1813766 , 38995969 , 77991938
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
-77991937
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 77991938 can be divided by 16 positive divisors.
The sum of these divisors (counting 77991938) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100101001100001000000000010
3
Ternary
12102202101211022
4
Quaternary
10221201000002
5
Quinary
124431220223
6
Senary
11423345442
8
Octal
451410002
10
Decimal
77991938
12
Duodecimal
22152282
16
Hexadecimal
4a61002
20
Vigesimal
1478jgi
36
Base36
1afmyq
md5
f76a71f68fbb3349e22071848b8dac74
sha1
fe3cd7fdc80e08ef679d14c5df71e03d3bbfbfb8
sha256
eb00733fad0c62cadea0ce053c0fbc5945e97db999bcbe221764d60afb7c4b57
sha512
17a702d73f1c4398015f300a1e715c075c862c5c8312133f51f12dee15cb0d5d30fb62f029808e34485c4021a3612fb18422eef290065096347f54ec2518d1ad
ripemd-160
46ae1ac22aa3a4e13e5b0c5f401473950e8f1d5d
Diameter
155983876
Circumference
490037798.92006
Area
1.9109498815515E+16
Volume
1.987182462441E+24
Surface area
7.643799526206E+16
Circumference
490037798.92006
Perimeter
311967752
Area
6082742392995844
Diagonal
110297256.47536
Surface area
36496454357975064
Volume
4.744048675845E+23
Space diagonal
135085999.19676
Perimeter
233975814
Area
2.6339047185055E+15
Altitude
67542999.598381
Surface area
2.6339047185055E+15
Volume
5.5909149816151E+22
Height
36765752.158454