81837478 (number)

81837478 is an even 8-digits composite number following 81837477 and preceding 81837479. In scientific notation, it is written as 8.1837478 × 10^7. The sum of its digits is 46. It has a total of 4 prime factors and 16 positive divisors. There are 38858400 positive integers (up to 81837478) that are relatively prime to 81837478.

Interesting facts

Basic properties

Name

Name eighty-one million eight hundred thirty-seven thousand four hundred seventy-eight

Notation

Scientific notation 8.1837478 × 10^7
Engineering notation 8.1837478 × 10^6

Prime Factorization of 81837478

Prime Factorization 2 × 29 × 61 × 23131

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81837478
Product of the distinct prime numbers

The prime factorization of 81837478 is 2 × 29 × 61 × 23131. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 3, 27, 76, 53, 653, 6259, 560, 49397, 96218, 67466, 375050, 9769597, 2534623, 83126216, 22166682, 250712147, 709820953, 5423310742, 1320642318

Basic calculations (n = 81837478)

Multiplication

n×y
n×2 163674956
n×3 245512434
n×4 327349912
n×5 409187390

Division

n÷y
n÷2 40918739
n÷3 27279159.333333
n÷3 20459369.5
n÷5 16367495.6

Exponentiation

ny
n2 6697372805400484
n3 5.4809609961976E+23
n4 4.4854802494518E+31
n5 3.6708039123395E+39

Nth Root

y√n
2√n 9046.4069110338
3√n 434.16093686628
4√n 95.112601221046
5√n 38.246389841186

Divisors of 81837478

1, 2, 29, 58, 61, 122, 1769, 3538, 23131, 46262, 670799, 1341598, 1410991, 2821982, 40918739, 81837478

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 -81837477
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 81837478 can be divided by 16 positive divisors. The sum of these divisors (counting 81837478) is 1, the average is 0.0625.

Base conversion 81837478

Base System Value
2 Binary 100111000001011110110100110
3 Ternary 12200222202220201
4 Quaternary 10320023312212
5 Quinary 131422244403
6 Senary 12042021114
8 Octal 470136646
10 Decimal 81837478
12 Duodecimal 234a779a
16 Hexadecimal 4e0bda6
20 Vigesimal 15b9ddi
36 Base36 1cq27a

Cryptographic Hash Functions

md5 9ff670c3b9c16cbf6a61b9f976703197
sha1 586e02c7f0ef0b3b071562df088d8c0794987450
sha256 d3a2357da6bc45e7f7262b7e60cbefe57f7bbe5148557e463aad96e1a5ac0d13
sha512 84beb2b162b8fce93456b246647bf24466d4d4a53fd1ff0ffada4109994ae4091d1adfdbf3d43d32fdf3146f87325622c88d96795733e890577afd2b4f5a149e
ripemd-160 9314803f7fdbd3a240175dbe4af74b6d905fa561

81837478 as geometric shapes

Circle

Radius = n
Diameter 163674956
Circumference 514200039.34623
Area 2.1040417203798E+16

Sphere

Radius = n
Volume 2.2958595733689E+24
Surface area 8.4161668815193E+16
Circumference 514200039.34623

Square

Length = n
Perimeter 327349912
Area 6697372805400484
Diagonal 115735671.29801

Cube

Length = n
Surface area 40184236832402904
Volume 5.4809609961976E+23
Space diagonal 141746669.8593

Equilateral Triangle

Length = n
Perimeter 245512434
Area 2.9000474940459E+15
Altitude 70873334.92965

Triangular Pyramid

Length = n
Surface area 2.9000474940459E+15
Volume 6.4593744797172E+22
Height 38578557.099337