72187894 is an even 8-digits composite number following 72187893
and preceding 72187895 . In scientific notation, it is written as 7.2187894 × 10^7.
The sum of its digits is 46. It has a total of 2 prime factors and 4 positive divisors.
There are 36093946 positive integers (up to 72187894) that are relatively prime to 72187894.
72187894 has 4 divisors, whose sum is 108281844
The reverse of 72187894 is 49878127
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 46
Digital Root 1
Name
seventy-two million one hundred eighty-seven thousand eight hundred ninety-four
Scientific notation
7.2187894 × 10^7
Engineering notation
7.2187894 × 10^6
Prime Factorization
2 × 36093947
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
72187894
Product of the distinct prime numbers
The prime factorization of 72187894 is 2 × 36093947.
Since it has a total of 2 prime factors.
5 , 2 , 28 , 26 , 101 , 415 , 5021 , 1492 , 85966 , 27154 , 33019 , 310099 , 4790357 , 6708758 , 9672074 , 6914077 , 497481441 , 335481037 , 6185288299 , 6771489825
n×2
144375788
n×3
216563682
n×4
288751576
n×5
360939470
n÷2
36093947
n÷3
24062631.333333
n÷3
18046973.5
n÷5
14437578.8
n2
5211092040155236
n3
3.7617775981897E+23
n4
2.7155480250969E+31
n5
1.9602969298761E+39
2 √n
8496.3459204531
3 √n
416.37833477914
4 √n
92.175625413951
5 √n
37.298629499531
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
-72187893
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 72187894 can be divided by 4 positive divisors.
The sum of these divisors (counting 72187894) is 1, the average is 0.25.
Base
System
Value
2
Binary
100010011010111111111110110
3
Ternary
12000211112011201
4
Quaternary
10103113333312
5
Quinary
121440003034
6
Senary
11055123114
8
Octal
423277766
10
Decimal
72187894
12
Duodecimal
2021349a
16
Hexadecimal
44d7ff6
20
Vigesimal
12b39ee
36
Base36
16z8ja
md5
1a96a50458798d1512b8be74e4d9e316
sha1
98c7a140c0055e0565d017b53be7d0e4a8428aad
sha256
9e3231719df65c9f94120e360766d6882c5fd91c5679c92ed96a96b33b46ce76
sha512
7220065c21aba04feabef46e09f5dc07b75465bde6df93feffa58f211da4ec8fb91b0f09de4a79a3c5a80e69b1c1bae8b8e6bd64afca388827e78e1bdc544290
ripemd-160
aa6fa38c184230b7ee18201a21f94a1b4a045e9b
Diameter
144375788
Circumference
453569914.93704
Area
1.6371128470532E+16
Volume
1.5757297155882E+24
Surface area
6.5484513882128E+16
Circumference
453569914.93704
Perimeter
288751576
Area
5211092040155236
Diagonal
102089098.73395
Surface area
31266552240931416
Volume
3.7617775981897E+23
Space diagonal
125033100.0994
Perimeter
216563682
Area
2.2564690441167E+15
Altitude
62516550.049698
Surface area
2.2564690441167E+15
Volume
4.4332974149926E+22
Height
34029699.577984