77995721 is an odd 8-digits composite number following 77995720
and preceding 77995722 . In scientific notation, it is written as 7.7995721 × 10^7.
The sum of its digits is 47. It has a total of 4 prime factors and 12 positive divisors.
There are 74950560 positive integers (up to 77995721) that are relatively prime to 77995721.
77995721 has 12 divisors, whose sum is 81159876
The reverse of 77995721 is 12759977
Previous prime number is 293
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
seventy-seven million nine hundred ninety-five thousand seven hundred twenty-one
Scientific notation
7.7995721 × 10^7
Engineering notation
7.7995721 × 10^6
Prime Factorization
31 × 31 × 293 × 277
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
2515991
Product of the distinct prime numbers
The prime factorization of 77995721 is 31 × 31 × 293 × 277.
Since it has a total of 4 prime factors.
5 , 4 , 81 , 53 , 215 , 110 , 5984 , 5767 , 53423 , 78564 , 325953 , 320139 , 9869693 , 2344026 , 82506273 , 5581146 , 572799229 , 230425634 , 8849130012 , 6600183505
n×2
155991442
n×3
233987163
n×4
311982884
n×5
389978605
n÷2
38997860.5
n÷3
25998573.666667
n÷3
19498930.25
n÷5
15599144.2
n2
6083332494309841
n3
4.7447390397642E+23
n4
3.7006934236326E+31
n5
2.8863825177618E+39
2 √n
8831.5186123339
3 √n
427.25805490448
4 √n
93.9761598084
5 √n
37.880365033025
1 , 31 , 277 , 293 , 961 , 8587 , 9083 , 81161 , 266197 , 281573 , 2515991 , 77995721
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-77995720
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 77995721 can be divided by 12 positive divisors.
The sum of these divisors (counting 77995721) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
100101001100001111011001001
3
Ternary
12102202121000102
4
Quaternary
10221201323021
5
Quinary
124431330341
6
Senary
11423415145
8
Octal
451417311
10
Decimal
77995721
12
Duodecimal
221544b5
16
Hexadecimal
4a61ec9
20
Vigesimal
1479961
36
Base36
1afpvt
md5
f9e7beb7935acb999d62964093539b59
sha1
a4da0dd6f90a05ec3551483db277faf00624a77c
sha256
00eacdb5cf27099c2e7ceaa8203e9f6793ee82053f545adc5624c4675eba0968
sha512
c35b6c34d925e2a4cf7085a3e6453064fe4b5d26768572373bf48fc5ea673c4c4ec7a1c43cd2297ea52de16096148d29a1fbc89398f18701aa4809496560e156
ripemd-160
3501cb9fca6504d6decd9ebf937e21f8880abc00
Diameter
155991442
Circumference
490061568.21008
Area
1.9111352673468E+16
Volume
1.9874716414032E+24
Surface area
7.6445410693871E+16
Circumference
490061568.21008
Perimeter
311982884
Area
6083332494309841
Diagonal
110302606.44527
Surface area
36499994965859046
Volume
4.7447390397642E+23
Space diagonal
135092551.54497
Perimeter
233987163
Area
2.6341602398698E+15
Altitude
67546275.772483
Surface area
2.6341602398698E+15
Volume
5.5917285832964E+22
Height
36767535.481756