81342618 (number)

81342618 is an even 8-digits composite number following 81342617 and preceding 81342619. In scientific notation, it is written as 8.1342618 × 10^7. The sum of its digits is 33. It has a total of 5 prime factors and 32 positive divisors. There are 22442112 positive integers (up to 81342618) that are relatively prime to 81342618.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1342618 × 10^7
Engineering notation 8.1342618 × 10^6

Prime Factorization of 81342618

Prime Factorization 2 × 21 × 89 × 47 × 463

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 81342618
Product of the distinct prime numbers

The prime factorization of 81342618 is 2 × 21 × 89 × 47 × 463. Since it has a total of 5 prime factors.

Most popular turbo-numbers

1, 9, 83, 12, 813, 555, 3741, 2200, 55112, 53488, 777022, 69322, 9201664, 1364524, 73008015, 14153592, 892609, 40611812, 8133400903, 1769950391

Basic calculations (n = 81342618)

Multiplication

n×y
n×2 162685236
n×3 244027854
n×4 325370472
n×5 406713090

Division

n÷y
n÷2 40671309
n÷3 27114206
n÷3 20335654.5
n÷5 16268523.6

Exponentiation

ny
n2 6616621503093924
n3 5.3821331537675E+23
n4 4.3779680115205E+31
n5 3.5611537957733E+39

Nth Root

y√n
2√n 9019.014247688
3√n 433.28406316872
4√n 94.968490815049
5√n 38.200023422331

Divisors of 81342618

1, 2, 21, 42, 47, 89, 94, 178, 463, 926, 987, 1869, 1974, 3738, 4183, 8366, 9723, 19446, 21761, 41207, 43522, 82414, 87843, 175686, 456981, 865347, 913962, 1730694, 1936729, 3873458, 40671309, 81342618

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81342617
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81342618 can be divided by 32 positive divisors. The sum of these divisors (counting 81342618) is 1, the average is 0.03125.

Base conversion 81342618

Base System Value
2 Binary 100110110010011000010011010
3 Ternary 12200001122002120
4 Quaternary 10312103002122
5 Quinary 131310430433
6 Senary 12023242110
8 Octal 466230232
10 Decimal 81342618
12 Duodecimal 232a9336
16 Hexadecimal 4d9309a
20 Vigesimal 1587gai
36 Base36 1cfgd6

Cryptographic Hash Functions

md5 2e70a8fe796e22d929ac249a1ae5e382
sha1 11c4716b35329074d19e76372130174dc0186043
sha256 68902c3c2e7a8822872a03a36ecddbd6ee8bcd75a9605bcd70e4a0240bcd294f
sha512 1f7b8fb1723eb0a0aaa37f952fa301e02987489146264190c8785be24f82cdb966ebb70fbdad06440d99672ff58bb46b5c24ae40292fef7396abb6b2018017a7
ripemd-160 3100be0c6af4defb4eabe67565678407e5e38e9d

81342618 as geometric shapes

Circle

Radius = n
Diameter 162685236
Circumference 511090742.26512
Area 2.0786729505704E+16

Sphere

Radius = n
Volume 2.2544626635358E+24
Surface area 8.3146918022817E+16
Circumference 511090742.26512

Square

Length = n
Perimeter 325370472
Area 6616621503093924
Diagonal 115035833.57453

Cube

Length = n
Surface area 39699729018563544
Volume 5.3821331537675E+23
Space diagonal 140889547.19667

Equilateral Triangle

Length = n
Perimeter 244027854
Area 2.8650811544529E+15
Altitude 70444773.598333

Triangular Pyramid

Length = n
Surface area 2.8650811544529E+15
Volume 6.3429047504633E+22
Height 38345277.858178