72505839 is an odd 8-digits composite number following 72505838
and preceding 72505840 . In scientific notation, it is written as 7.2505839 × 10^7.
The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors.
There are 40842480 positive integers (up to 72505839) that are relatively prime to 72505839.
72505839 has 16 divisors, whose sum is 88045056
The reverse of 72505839 is 93850527
Previous prime number is 71
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
seventy-two million five hundred five thousand eight hundred thirty-nine
Scientific notation
7.2505839 × 10^7
Engineering notation
7.2505839 × 10^6
Prime Factorization
21 × 7 × 71 × 6947
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
72505839
Product of the distinct prime numbers
The prime factorization of 72505839 is 21 × 7 × 71 × 6947.
Since it has a total of 4 prime factors.
8 , 1 , 9 , 26 , 31 , 374 , 8878 , 5653 , 10425 , 74139 , 69663 , 485726 , 9288350 , 8129754 , 85700914 , 65941263 , 378039782 , 551920317 , 4762424476 , 4630624943
n×2
145011678
n×3
217517517
n×4
290023356
n×5
362529195
n÷2
36252919.5
n÷3
24168613
n÷3
18126459.75
n÷5
14501167.8
n2
5257096689093921
n3
3.8117020614688E+23
n4
2.7637065598482E+31
n5
2.003848628716E+39
2 √n
8515.036053946
3 √n
416.98873963923
4 √n
92.276952994483
5 √n
37.331427450939
1 , 7 , 21 , 71 , 147 , 497 , 1491 , 6947 , 10437 , 48629 , 145887 , 493237 , 1021209 , 3452659 , 10357977 , 72505839
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
-72505838
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 72505839 can be divided by 16 positive divisors.
The sum of these divisors (counting 72505839) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100010100100101100111101111
3
Ternary
12001102200022110
4
Quaternary
10110211213233
5
Quinary
122030141324
6
Senary
11110015103
8
Octal
424454757
10
Decimal
72505839
12
Duodecimal
20347493
16
Hexadecimal
45259ef
20
Vigesimal
12d34bj
36
Base36
1761v3
md5
3aeb80c6d7d2e501306ea6ca6fce28a3
sha1
33475877d03bafa864695b2c9cb2beb7f677b873
sha256
b9290ef8f8db545680aa42a08b865e79e3be374c8225c1ca1f07293614553d5a
sha512
ac16dae15eb3d218c9533a7d1a03a14f0215fd494e862bd0152051e5d85ee94aa65998ab0979747ac9a79d3b96de5e87308bd190074d3da1b7d75a7a652a551d
ripemd-160
fbc28a40369370405cd5fabd92c09e618df17510
Diameter
145011678
Circumference
455567622.28953
Area
1.6515656337669E+16
Volume
1.5966420258644E+24
Surface area
6.6062625350675E+16
Circumference
455567622.28953
Perimeter
290023356
Area
5257096689093921
Diagonal
102538740.86504
Surface area
31542580134563526
Volume
3.8117020614688E+23
Space diagonal
125583796.99341
Perimeter
217517517
Area
2.2763896414532E+15
Altitude
62791898.496704
Surface area
2.2763896414532E+15
Volume
4.4921339592122E+22
Height
34179580.288347