81572357 is an odd 8-digits prime number following 81572356
and preceding 81572358 . In scientific notation, it is written as 8.1572357 × 10^7.
The sum of its digits is 38. It has a total of 1 prime factors and 2 positive divisors.
There are 81572356 positive integers (up to 81572357) that are relatively prime to 81572357.
81572357 has 2 divisors, whose sum is 81572358
The reverse of 81572357 is 75327518
Previous prime number is 1
Is Prime? yes Number parity odd Number length 8 Sum of Digits 38 Digital Root 2
Name
eighty-one million five hundred seventy-two thousand three hundred fifty-seven
Scientific notation
8.1572357 × 10^7
Engineering notation
8.1572357 × 10^6
Prime Factorization
81572357
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
81572357 Product of the distinct prime numbers
The prime factorization of 81572357 is 81572357.
Since it has a total of 1 prime factors.
1 , 6 , 68 , 91 , 851 , 602 , 9501 , 1993 , 1854 , 3368 , 750771 , 889900 , 1461816 , 1635384 , 57756218 , 66015509 , 279831138 , 784866217 , 6000673493 , 1551071243
n×2
163144714
n×3
244717071
n×4
326289428
n×5
407861785
n÷2
40786178.5
n÷3
27190785.666667
n÷3
20393089.25
n÷5
16314471.4
n2
6654049426535449
n3
5.4278649531699E+23
n4
4.4276373770777E+31
n5
3.6117281678952E+39
2 √n9031.7416371373
3 √n433.69159320636
4 √n95.035475676914
5 √n38.221577037326
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
81572358 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
40786179 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
9031.7416924976 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999754819 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81572357 can be divided by 2 positive divisors.
The sum of these divisors (counting 81572357) is 81572358, the average is 40786179.
Base
System
Value
2
Binary
100110111001011001000000101
3
Ternary
12200111022020102
4
Quaternary
10313023020011
5
Quinary
131340303412
6
Senary
12032213445
8
Octal
467131005
10
Decimal
81572357
12
Duodecimal
2339a285
16
Hexadecimal
4dcb205
20
Vigesimal
159gahh
36
Base36
1ckdmt
md5
57e9ee30b7053801589a6b2917163b8c
sha1
34fa866ecc921f42d6c2c3d236f4a7c792b84cdd
sha256
dab4764024f3e3e8fb3e589a021b6df2589d925036b9ebe2560cf2eeb0bea2ed
sha512
b58ec6e7da4ab074f8fd20fecbd73bab4c8fed6ca7a4e73565664454d490e44b573d62c64588e98201743d69d18a45d019e2ce853968fdc2b796b059520952d8
ripemd-160
96d013e2d11d1d6147a092055cf2a098a0601af1
Diameter
163144714
Circumference
512534234.97441
Area
2.0904312795027E+16
Volume
2.2736187548742E+24
Surface area
8.3617251180109E+16
Circumference
512534234.97441
Perimeter
326289428
Area
6654049426535449
Diagonal
115360733.58414
Surface area
39924296559212694
Volume
5.4278649531699E+23
Space diagonal
141287466.81715
Perimeter
244717071
Area
2.8812879207085E+15
Altitude
70643733.408573
Surface area
2.8812879207085E+15
Volume
6.3968001929188E+22
Height
38453577.86138