72781489 is an odd 8-digits composite number following 72781488
and preceding 72781490 . In scientific notation, it is written as 7.2781489 × 10^7.
The sum of its digits is 46. It has a total of 2 prime factors and 4 positive divisors.
There are 66164980 positive integers (up to 72781489) that are relatively prime to 72781489.
72781489 has 4 divisors, whose sum is 79398000
The reverse of 72781489 is 98418727
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 46
Digital Root 1
Name
seventy-two million seven hundred eighty-one thousand four hundred eighty-nine
Scientific notation
7.2781489 × 10^7
Engineering notation
7.2781489 × 10^6
Prime Factorization
11 × 6616499
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
72781489
Product of the distinct prime numbers
The prime factorization of 72781489 is 11 × 6616499.
Since it has a total of 2 prime factors.
4 , 1 , 11 , 32 , 212 , 962 , 3270 , 8603 , 64886 , 35103 , 69684 , 370631 , 7261233 , 8409366 , 72254798 , 9331167 , 71744331 , 832565790 , 3338393939 , 2398573712
n×2
145562978
n×3
218344467
n×4
291125956
n×5
363907445
n÷2
36390744.5
n÷3
24260496.333333
n÷3
18195372.25
n÷5
14556297.8
n2
5297145141057121
n3
3.8553411081525E+23
n4
2.8059746645425E+31
n5
2.0422301418168E+39
2 √n
8531.2067727843
3 √n
417.5165021505
4 √n
92.364532006524
5 √n
37.359769430132
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-72781488
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 72781489 can be divided by 4 positive divisors.
The sum of these divisors (counting 72781489) is 1, the average is 0.25.
Base
System
Value
2
Binary
100010101101000111010110001
3
Ternary
12001221200102201
4
Quaternary
10111220322301
5
Quinary
122113001424
6
Senary
11115543201
8
Octal
425507261
10
Decimal
72781489
12
Duodecimal
2045ab01
16
Hexadecimal
4568eb1
20
Vigesimal
12ehde9
36
Base36
17byk1
md5
edd1146fa8fe1c58b1542672dd95422c
sha1
460ee8738a5354ac17d9460f6e4bb433adc8e3e3
sha256
3e744786a040361406b009712f25da7cf0d1a55843e7e7952321bf91c423e8e6
sha512
d7bbf7e851f92e75fd95b8b222b02282937d2c2d79f3431db1110e5c0866b4b9bbedeb0afb752c856be92cb20a194e1cbde163d215e1556cd48dd5ee0373ba7d
ripemd-160
1c3349f25092bc894b8057924632eaab1a8dca0e
Diameter
145562978
Circumference
457299582.31945
Area
1.6641472260144E+16
Volume
1.614921506994E+24
Surface area
6.6565889040576E+16
Circumference
457299582.31945
Perimeter
291125956
Area
5297145141057121
Diagonal
102928568.83351
Surface area
31782870846342726
Volume
3.8553411081525E+23
Space diagonal
126061236.79852
Perimeter
218344467
Area
2.2937311298444E+15
Altitude
63030618.399258
Surface area
2.2937311298444E+15
Volume
4.5435630689365E+22
Height
34309522.944503