72187421 is an odd 8-digits prime number following 72187420
and preceding 72187422 . In scientific notation, it is written as 7.2187421 × 10^7.
The sum of its digits is 32. It has a total of 1 prime factors and 2 positive divisors.
There are 72187420 positive integers (up to 72187421) that are relatively prime to 72187421.
72187421 has 2 divisors, whose sum is 72187422
The reverse of 72187421 is 12478127
Previous prime number is 1
Is Prime? yes Number parity odd Number length 8 Sum of Digits 32 Digital Root 5
Name
seventy-two million one hundred eighty-seven thousand four hundred twenty-one
Scientific notation
7.2187421 × 10^7
Engineering notation
7.2187421 × 10^6
Prime Factorization
72187421
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
72187421 Product of the distinct prime numbers
The prime factorization of 72187421 is 72187421.
Since it has a total of 1 prime factors.
1 , 5 , 21 , 94 , 556 , 16 , 7859 , 4984 , 54163 , 1446 , 822855 , 746470 , 2317369 , 753237 , 18719340 , 49012118 , 951105128 , 790441509 , 1077083085 , 5049183089
n×2
144374842
n×3
216562263
n×4
288749684
n×5
360937105
n÷2
36093710.5
n÷3
24062473.666667
n÷3
18046855.25
n÷5
14437484.2
n2
5211023750631241
n3
3.7617036532782E+23
n4
2.7154768529643E+31
n5
1.9602327080069E+39
2 √n8496.3180849118
3 √n416.37742535896
4 √n92.175474421952
5 √n37.298580620704
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
72187422 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
36093711 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
8496.3181437609 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999722943 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 72187421 can be divided by 2 positive divisors.
The sum of these divisors (counting 72187421) is 72187422, the average is 36093711.
Base
System
Value
2
Binary
100010011010111111000011101
3
Ternary
12000211111112012
4
Quaternary
10103113320131
5
Quinary
121434444141
6
Senary
11055121005
8
Octal
423277035
10
Decimal
72187421
12
Duodecimal
20213165
16
Hexadecimal
44d7e1d
20
Vigesimal
12b38b1
36
Base36
16z865
md5
7936d945ffea56b91ca0dd5dba2e4937
sha1
e18cdfdc1d1385af8b29f099e5edd208b9013e31
sha256
d17e7eddb6069e4c137a847f731c2ff9746007d9aabd80612b73e61af135f936
sha512
78fae48c8eaa4374183d23ca5717729c4a9095196f6f241ef67c66bd4b16d972b5433c24012f35d5609b0707e638fcd896945f84f82a417cd769185b18527c49
ripemd-160
a3eea715acd88e2d3e3eea3b2f49fee870a9e8fa
Diameter
144374842
Circumference
453566942.99039
Area
1.6370913932665E+16
Volume
1.5756987416161E+24
Surface area
6.548365573066E+16
Circumference
453566942.99039
Perimeter
288749684
Area
5211023750631241
Diagonal
102088429.81094
Surface area
31266142503787446
Volume
3.7617036532782E+23
Space diagonal
125032280.83936
Perimeter
216562263
Area
2.2564394738854E+15
Altitude
62516140.419682
Surface area
2.2564394738854E+15
Volume
4.4332102700787E+22
Height
34029476.603645