81342641 (number)

81342641 is an odd 8-digits composite number following 81342640 and preceding 81342642. In scientific notation, it is written as 8.1342641 × 10^7. The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors. There are 79880080 positive integers (up to 81342641) that are relatively prime to 81342641.

Interesting facts

Basic properties

Name

Name eighty-one million three hundred forty-two thousand six hundred forty-one

Notation

Scientific notation 8.1342641 × 10^7
Engineering notation 8.1342641 × 10^6

Prime Factorization of 81342641

Prime Factorization 71 × 269 × 4259

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 81342641
Product of the distinct prime numbers

The prime factorization of 81342641 is 71 × 269 × 4259. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81342641)

Multiplication

n×y
n×2 162685282
n×3 244027923
n×4 325370564
n×5 406713205

Division

n÷y
n÷2 40671320.5
n÷3 27114213.666667
n÷3 20335660.25
n÷5 16268528.2

Exponentiation

ny
n2 6616625244854881
n3 5.3821377192377E+23
n4 4.3779729630851E+31
n5 3.5611588304394E+39

Nth Root

y√n
2√n 9019.0155227719
3√n 433.28410400641
4√n 94.968497528243
5√n 38.200025582577

Divisors of 81342641

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 -81342640
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 81342641 can be divided by 8 positive divisors. The sum of these divisors (counting 81342641) is 1, the average is 0.125.

Base conversion 81342641

Base System Value
2 Binary 100110110010011000010110001
3 Ternary 12200001122010102
4 Quaternary 10312103002301
5 Quinary 131310431031
6 Senary 12023242145
8 Octal 466230261
10 Decimal 81342641
12 Duodecimal 232a9355
16 Hexadecimal 4d930b1
20 Vigesimal 1587gc1
36 Base36 1cfgdt

Cryptographic Hash Functions

md5 4f6ef10ecadd37b81a3a40027261ae7e
sha1 04279264efc228a4f031da1a68b66b4b245eaee9
sha256 ee563862f0f493a23964ae3de5b46da31938d7fcbd4fd7e31b6ea0a336c1712f
sha512 804240bfd54e870ce54bf99bfc50f3328a6f629829d0ce091232516e7de5873f1b67bc7ae0b1018becc2b0f09fd545fd08f81abeb8f63b1ef98f34693db85f2e
ripemd-160 2209e5f754c01a4ca58f7c24cafd8816fdf7e3df

81342641 as geometric shapes

Circle

Radius = n
Diameter 162685282
Circumference 511090886.77838
Area 2.0786741260793E+16

Sphere

Radius = n
Volume 2.2544645759154E+24
Surface area 8.3146965043171E+16
Circumference 511090886.77838

Square

Length = n
Perimeter 325370564
Area 6616625244854881
Diagonal 115035866.10145

Cube

Length = n
Surface area 39699751469129286
Volume 5.3821377192377E+23
Space diagonal 140889587.03384

Equilateral Triangle

Length = n
Perimeter 244027923
Area 2.8650827746829E+15
Altitude 70444793.516918

Triangular Pyramid

Length = n
Surface area 2.8650827746829E+15
Volume 6.3429101309214E+22
Height 38345288.700482