81508726 (number)

81508726 is an even 8-digits composite number following 81508725 and preceding 81508727. In scientific notation, it is written as 8.1508726 × 10^7. The sum of its digits is 37. It has a total of 4 prime factors and 16 positive divisors. There are 37518048 positive integers (up to 81508726) that are relatively prime to 81508726.

Interesting facts

Basic properties

Name

Name eighty-one million five hundred eight thousand seven hundred twenty-six

Notation

Scientific notation 8.1508726 × 10^7
Engineering notation 8.1508726 × 10^6

Prime Factorization of 81508726

Prime Factorization 2 × 13 × 389 × 8059

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81508726
Product of the distinct prime numbers

The prime factorization of 81508726 is 2 × 13 × 389 × 8059. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 4, 58, 13, 523, 491, 4759, 353, 83964, 22413, 483657, 729888, 2527359, 2523102, 69921108, 24331310, 29675810, 870099962, 9459634622, 7125983129

Basic calculations (n = 81508726)

Multiplication

n×y
n×2 163017452
n×3 244526178
n×4 326034904
n×5 407543630

Division

n÷y
n÷2 40754363
n÷3 27169575.333333
n÷3 20377181.5
n÷5 16301745.2

Exponentiation

ny
n2 6643672414143076
n3 5.4151727443815E+23
n4 4.4138383146446E+31
n5 3.5976633779667E+39

Nth Root

y√n
2√n 9028.2183181401
3√n 433.57879597362
4√n 95.016937006726
5√n 38.215612182378

Divisors of 81508726

1, 2, 13, 26, 389, 778, 5057, 8059, 10114, 16118, 104767, 209534, 3134951, 6269902, 40754363, 81508726

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 -81508725
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 81508726 can be divided by 16 positive divisors. The sum of these divisors (counting 81508726) is 1, the average is 0.0625.

Base conversion 81508726

Base System Value
2 Binary 100110110111011100101110110
3 Ternary 12200101001221201
4 Quaternary 10312323211312
5 Quinary 131331234401
6 Senary 12031003114
8 Octal 466734566
10 Decimal 81508726
12 Duodecimal 2336949a
16 Hexadecimal 4dbb976
20 Vigesimal 1598bg6
36 Base36 1cj0ja

Cryptographic Hash Functions

md5 f65549b521c46c8a07bfab5d68cd861c
sha1 a637e4d0b0c21038146548d0994c907571e632b2
sha256 728662b6ecc92530addcb1b8b914670ea90b3c4c1316c68de92540d9c0ada8e1
sha512 221de384f936725c9011b726c915a20b3b40c47072e0c729b7339b1afba50db130c133f680b22fb1803d019d657e027c5c6b854d25394d23c75d0d2702b30d0a
ripemd-160 1ed48923fd8e5dee167181069564cef0cb6e2552

81508726 as geometric shapes

Circle

Radius = n
Diameter 163017452
Circumference 512134429.61013
Area 2.0871712449129E+16

Sphere

Radius = n
Volume 2.2683022548891E+24
Surface area 8.3486849796516E+16
Circumference 512134429.61013

Square

Length = n
Perimeter 326034904
Area 6643672414143076
Diagonal 115270745.76095

Cube

Length = n
Surface area 39862034484858456
Volume 5.4151727443815E+23
Space diagonal 141177254.69221

Equilateral Triangle

Length = n
Perimeter 244526178
Area 2.8767945425349E+15
Altitude 70588627.346105

Triangular Pyramid

Length = n
Surface area 2.8767945425349E+15
Volume 6.3818422814145E+22
Height 38423581.920318