81337215 (number)

81337215 is an odd 8-digits composite number following 81337214 and preceding 81337216. In scientific notation, it is written as 8.1337215 × 10^7. The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors. There are 42830112 positive integers (up to 81337215) that are relatively prime to 81337215.

Interesting facts

Basic properties

Name

Name eighty-one million three hundred thirty-seven thousand two hundred fifteen

Notation

Scientific notation 8.1337215 × 10^7
Engineering notation 8.1337215 × 10^6

Prime Factorization of 81337215

Prime Factorization 3 × 5 × 79 × 68639

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81337215
Product of the distinct prime numbers

The prime factorization of 81337215 is 3 × 5 × 79 × 68639. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 3, 73, 24, 475, 377, 4209, 7632, 42032, 59376, 191568, 599945, 3008158, 4460069, 22679052, 78925084, 642699527, 117808152, 3014377651, 7543203426

Basic calculations (n = 81337215)

Multiplication

n×y
n×2 162674430
n×3 244011645
n×4 325348860
n×5 406686075

Division

n÷y
n÷2 40668607.5
n÷3 27112405
n÷3 20334303.75
n÷5 16267443

Exponentiation

ny
n2 6615742543956225
n3 5.3810607368241E+23
n4 4.3768049407912E+31
n5 3.559971244822E+39

Nth Root

y√n
2√n 9018.7147088707
3√n 433.27446965065
4√n 94.966913758796
5√n 38.199515938762

Divisors of 81337215

1, 3, 5, 15, 79, 237, 395, 1185, 68639, 205917, 343195, 1029585, 5422481, 16267443, 27112405, 81337215

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81337214
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81337215 can be divided by 16 positive divisors. The sum of these divisors (counting 81337215) is 1, the average is 0.0625.

Base conversion 81337215

Base System Value
2 Binary 100110110010001101101111111
3 Ternary 12200001100200110
4 Quaternary 10312101231333
5 Quinary 131310242330
6 Senary 12023201103
8 Octal 466215577
10 Decimal 81337215
12 Duodecimal 232a6193
16 Hexadecimal 4d91b7f
20 Vigesimal 158730f
36 Base36 1cfc73

Cryptographic Hash Functions

md5 db4ad18447c6009474db511b7813fb49
sha1 15fcfb41f89080464f8e614c3d2a7b1882b7e616
sha256 b7ee3e7e50470cf0765898543af454e65a5da0d2ec5663ddff59d769c03442b6
sha512 727bbb82d554fe15d74d27a71f2e9a4a0b6d9578d0c930d5a407488cae3dba8de61b64cc4ffe7e4a1caa65188a13aaba35b7ddbd77ec4f45563f26cddf914953
ripemd-160 7e111c9ac455996217facd845484083a0bc32b0d

81337215 as geometric shapes

Circle

Radius = n
Diameter 162674430
Circumference 511056794.21491
Area 2.0783968174134E+16

Sphere

Radius = n
Volume 2.254013450577E+24
Surface area 8.3135872696537E+16
Circumference 511056794.21491

Square

Length = n
Perimeter 325348860
Area 6615742543956225
Diagonal 115028192.57866

Cube

Length = n
Surface area 39694455263737350
Volume 5.3810607368241E+23
Space diagonal 140880188.92615

Equilateral Triangle

Length = n
Perimeter 244011645
Area 2.8647005539818E+15
Altitude 70440094.463077

Triangular Pyramid

Length = n
Surface area 2.8647005539818E+15
Volume 6.3416408949751E+22
Height 38342730.859552