72181145 is an odd 8-digits composite number following 72181144
and preceding 72181146 . In scientific notation, it is written as 7.2181145 × 10^7.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 55753600 positive integers (up to 72181145) that are relatively prime to 72181145.
72181145 has 8 divisors, whose sum is 89604360
The reverse of 72181145 is 54118127
Previous prime number is 29
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
seventy-two million one hundred eighty-one thousand one hundred forty-five
Scientific notation
7.2181145 × 10^7
Engineering notation
7.2181145 × 10^6
Prime Factorization
5 × 29 × 497801
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
72181145
Product of the distinct prime numbers
The prime factorization of 72181145 is 5 × 29 × 497801.
Since it has a total of 3 prime factors.
10 , 5 , 66 , 64 , 239 , 494 , 6891 , 1334 , 74094 , 71464 , 686324 , 119613 , 9122341 , 4294836 , 48260427 , 18486708 , 41818095 , 803680606 , 3658404287 , 3528841838
n×2
144362290
n×3
216543435
n×4
288724580
n×5
360905725
n÷2
36090572.5
n÷3
24060381.666667
n÷3
18045286.25
n÷5
14436229
n2
5210117693511025
n3
3.7607226070238E+23
n4
2.7145326380237E+31
n5
1.9593807395242E+39
2 √n
8495.9487404292
3 √n
416.3653583422
4 √n
92.173470914516
5 √n
37.297932047782
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-72181144
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 72181145 can be divided by 8 positive divisors.
The sum of these divisors (counting 72181145) is 1, the average is 0.125.
Base
System
Value
2
Binary
100010011010110010110011001
3
Ternary
12000211011220202
4
Quaternary
10103112112121
5
Quinary
121434244040
6
Senary
11055031545
8
Octal
423262631
10
Decimal
72181145
12
Duodecimal
2020b5b5
16
Hexadecimal
44d6599
20
Vigesimal
12b2ch5
36
Base36
16z3bt
md5
2a61032c296a68d495f8839ad921ab73
sha1
a158a5629d5bd07f0ae5a78b496a65a16e924b3e
sha256
da5a87718f5aa659256b85fa9d2ce67547f10340bc7ad7efcd660b2bebb4d52a
sha512
0ddcaf5ef50738733365455b6e357393c0f9988495bba64e973cb8b838e21376edb732343054e1c380c72e8f7119af13b39763862904f62edb1491b50e4bde02
ripemd-160
8764b198aec4cb8f9dbe52efcb8d7d2699b0c02f
Diameter
144362290
Circumference
453527509.7194
Area
1.6368067470272E+16
Volume
1.575287801922E+24
Surface area
6.547226988109E+16
Circumference
453527509.7194
Perimeter
288724580
Area
5210117693511025
Diagonal
102079554.20662
Surface area
31260706161066150
Volume
3.7607226070238E+23
Space diagonal
125021410.4885
Perimeter
216543435
Area
2.2560471396437E+15
Altitude
62510705.244248
Surface area
2.2560471396437E+15
Volume
4.4320540959802E+22
Height
34026518.068873