72187864 is an even 8-digits composite number following 72187863
and preceding 72187865 . In scientific notation, it is written as 7.2187864 × 10^7.
The sum of its digits is 43. It has a total of 6 prime factors and 32 positive divisors.
There are 30278304 positive integers (up to 72187864) that are relatively prime to 72187864.
72187864 has 32 divisors, whose sum is 157985280
The reverse of 72187864 is 46878127
Previous prime number is 47
Is Prime? no
Number parity even
Number length 8
Sum of Digits 43
Digital Root 7
Name
seventy-two million one hundred eighty-seven thousand eight hundred sixty-four
Scientific notation
7.2187864 × 10^7
Engineering notation
7.2187864 × 10^6
Prime Factorization
2 × 2 × 2 × 7 × 47 × 27427
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
18046966
Product of the distinct prime numbers
The prime factorization of 72187864 is 2 × 2 × 2 × 7 × 47 × 27427.
Since it has a total of 6 prime factors.
2 , 3 , 60 , 44 , 932 , 658 , 7774 , 3809 , 90471 , 51614 , 610269 , 557214 , 7884788 , 196819 , 30989335 , 20511620 , 45471308 , 461232595 , 1080117455 , 3131519530
n×2
144375728
n×3
216563592
n×4
288751456
n×5
360939320
n÷2
36093932
n÷3
24062621.333333
n÷3
18046966
n÷5
14437572.8
n2
5211087708882496
n3
3.7617729082088E+23
n4
2.7155435109666E+31
n5
1.9602928565574E+39
2 √n
8496.3441549881
3 √n
416.37827709933
4 √n
92.175615837314
5 √n
37.298626399402
1 , 2 , 4 , 7 , 8 , 14 , 28 , 47 , 56 , 94 , 188 , 329 , 376 , 658 , 1316 , 2632 , 27427 , 54854 , 109708 , 191989 , 219416 , 383978 , 767956 , 1289069 , 1535912 , 2578138 , 5156276 , 9023483 , 10312552 , 18046966 , 36093932 , 72187864
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-72187863
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 72187864 can be divided by 32 positive divisors.
The sum of these divisors (counting 72187864) is 1, the average is 0.03125.
Base
System
Value
2
Binary
100010011010111111111011000
3
Ternary
12000211112010121
4
Quaternary
10103113333120
5
Quinary
121440002424
6
Senary
11055123024
8
Octal
423277730
10
Decimal
72187864
12
Duodecimal
20213474
16
Hexadecimal
44d7fd8
20
Vigesimal
12b39d4
36
Base36
16z8ig
md5
5d5ce6cc5cdfebd9c0cb5c880db342c1
sha1
bde8ca870e0bc0482fc682d5af36308098eb0823
sha256
fec94950a073716a7625d9575bbc42546c5a1f4d8856908ee2bafefe73dfdbb2
sha512
373d1ac2ce393ab9fa784e06c1fb941d52e4548fadb862ee3787c110034b375ff64483a9d361a813d9e8a00326d3a17cbdb6b86d39e825dba41621cc40accbb0
ripemd-160
eef1cee4a1e96a1d97916158b05160fca6e9d02f
Diameter
144375728
Circumference
453569726.44148
Area
1.6371114863437E+16
Volume
1.5757277510536E+24
Surface area
6.5484459453749E+16
Circumference
453569726.44148
Perimeter
288751456
Area
5211087708882496
Diagonal
102089056.30754
Surface area
31266526253294976
Volume
3.7617729082088E+23
Space diagonal
125033048.13787
Perimeter
216563592
Area
2.2564671686205E+15
Altitude
62516524.068936
Surface area
2.2564671686205E+15
Volume
4.4332918877972E+22
Height
34029685.435848