81502485 (number)

81502485 is an odd 8-digits composite number following 81502484 and preceding 81502486. In scientific notation, it is written as 8.1502485 × 10^7. The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors. There are 42818688 positive integers (up to 81502485) that are relatively prime to 81502485.

Interesting facts

Basic properties

Name

Name eighty-one million five hundred two thousand four hundred eighty-five

Notation

Scientific notation 8.1502485 × 10^7
Engineering notation 8.1502485 × 10^6

Prime Factorization of 81502485

Prime Factorization 15 × 67 × 81097

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 81502485
Product of the distinct prime numbers

The prime factorization of 81502485 is 15 × 67 × 81097. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81502485)

Multiplication

n×y
n×2 163004970
n×3 244507455
n×4 326009940
n×5 407512425

Division

n÷y
n÷2 40751242.5
n÷3 27167495
n÷3 20375621.25
n÷5 16300497

Exponentiation

ny
n2 6642655061175225
n3 5.4139289448361E+23
n4 4.4124866261757E+31
n5 3.5962862506258E+39

Nth Root

y√n
2√n 9027.8726730055
3√n 433.56772953339
4√n 95.015118128672
5√n 38.215026942116

Divisors of 81502485

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81502484
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81502485 can be divided by 8 positive divisors. The sum of these divisors (counting 81502485) is 1, the average is 0.125.

Base conversion 81502485

Base System Value
2 Binary 100110110111010000100010101
3 Ternary 12200100202101120
4 Quaternary 10312322010111
5 Quinary 131331034420
6 Senary 12030514153
8 Octal 466720425
10 Decimal 81502485
12 Duodecimal 23365959
16 Hexadecimal 4dba115
20 Vigesimal 1597g45
36 Base36 1civpx

Cryptographic Hash Functions

md5 4acb76e07cf51576fd87d735b3b55ffc
sha1 e837adaa8ca51e0d896bfd54153a1aab52bad899
sha256 b7055764d000da5fb3ac901b3e5790db7743c23a6cb8b6338144e33af799dbab
sha512 572b9e07a0bd52f3067ca11979eb19ce92ca4e737b77ca5bf53aea7f80bed5182076fcff0b57cfb6cc76269fc1a1d1d071d1837d8166a53e8a470937b34eabf9
ripemd-160 46759e97c3b49aeb071fe969c434333dc6bb19f4

81502485 as geometric shapes

Circle

Radius = n
Diameter 163004970
Circumference 512095216.25062
Area 2.0868516340519E+16

Sphere

Radius = n
Volume 2.2677812533539E+24
Surface area 8.3474065362077E+16
Circumference 512095216.25062

Square

Length = n
Perimeter 326009940
Area 6642655061175225
Diagonal 115261919.65411

Cube

Length = n
Surface area 39855930367051350
Volume 5.4139289448361E+23
Space diagonal 141166444.96312

Equilateral Triangle

Length = n
Perimeter 244507455
Area 2.8763540157775E+15
Altitude 70583222.48156

Triangular Pyramid

Length = n
Surface area 2.8763540157775E+15
Volume 6.3803764495929E+22
Height 38420639.884703