81572023 is an odd 8-digits composite number following 81572022
and preceding 81572024 . In scientific notation, it is written as 8.1572023 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 75297240 positive integers (up to 81572023) that are relatively prime to 81572023.
81572023 has 4 divisors, whose sum is 87846808
The reverse of 81572023 is 32027518
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
eighty-one million five hundred seventy-two thousand twenty-three
Scientific notation
8.1572023 × 10^7
Engineering notation
8.1572023 × 10^6
Prime Factorization
13 × 6274771
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81572023
Product of the distinct prime numbers
The prime factorization of 81572023 is 13 × 6274771.
Since it has a total of 2 prime factors.
2 , 3 , 68 , 26 , 210 , 32 , 6772 , 8417 , 43456 , 13116 , 225100 , 127434 , 1898968 , 5919424 , 76995451 , 96602110 , 569127069 , 249539298 , 4659668664 , 7717115520
n×2
163144046
n×3
244716069
n×4
326288092
n×5
407860115
n÷2
40786011.5
n÷3
27190674.333333
n÷3
20393005.75
n÷5
16314404.6
n2
6653994936312529
n3
5.4277982798677E+23
n4
4.4275648612473E+31
n5
3.6116542269565E+39
2 √n
9031.7231467755
3 √n
433.69100128529
4 √n
95.035378395498
5 √n
38.221545737439
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
-81572022
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 81572023 can be divided by 4 positive divisors.
The sum of these divisors (counting 81572023) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110111001011000010110111
3
Ternary
12200111021210001
4
Quaternary
10313023002313
5
Quinary
131340301043
6
Senary
12032212131
8
Octal
467130267
10
Decimal
81572023
12
Duodecimal
2339a047
16
Hexadecimal
4dcb0b7
20
Vigesimal
159ga13
36
Base36
1ckddj
md5
46e1558fd0bfa0943b667a56b21f45ce
sha1
1550153da1647b66490db2f9af0ba86a2e46b086
sha256
457abecfb678a1d3acb2e30dc520bf3fc78bbd99f5e43d758ea53fa425823861
sha512
514f7c2ce3ec3489f13e931e517a4b41a795dc833b154ddfcef3e8a51316e32641ca976360cda500e0afa3bc6051fa4c909af7dc0849eb0d8f84a455867b9297
ripemd-160
c7924c1a5c93fca457ca7701ef7befbf196aa245
Diameter
163144046
Circumference
512532136.39052
Area
2.0904141608943E+16
Volume
2.2735908268266E+24
Surface area
8.3616566435772E+16
Circumference
512532136.39052
Perimeter
326288092
Area
6653994936312529
Diagonal
115360261.23681
Surface area
39923969617875174
Volume
5.4277982798677E+23
Space diagonal
141286888.31218
Perimeter
244716069
Area
2.8812643257498E+15
Altitude
70643444.156089
Surface area
2.8812643257498E+15
Volume
6.3967216176785E+22
Height
38453420.41227