81126688 (number)

81126688 is an even 8-digits composite number following 81126687 and preceding 81126689. In scientific notation, it is written as 8.1126688 × 10^7. The sum of its digits is 40. It has a total of 7 prime factors and 24 positive divisors. There are 39164160 positive integers (up to 81126688) that are relatively prime to 81126688.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1126688 × 10^7
Engineering notation 8.1126688 × 10^6

Prime Factorization of 81126688

Prime Factorization 2 × 2 × 2 × 2 × 2 × 29 × 87421

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 5070418
Product of the distinct prime numbers

The prime factorization of 81126688 is 2 × 2 × 2 × 2 × 2 × 29 × 87421. Since it has a total of 7 prime factors.

Most popular turbo-numbers

9, 4, 23, 93, 197, 555, 6275, 8120, 4808, 19572, 615850, 911905, 2426158, 7060542, 31080366, 7480849, 241622476, 243258272, 1267504362, 9478442591

Basic calculations (n = 81126688)

Multiplication

n×y
n×2 162253376
n×3 243380064
n×4 324506752
n×5 405633440

Division

n÷y
n÷2 40563344
n÷3 27042229.333333
n÷3 20281672
n÷5 16225337.6

Exponentiation

ny
n2 6581539505849344
n3 5.3393850205071E+23
n4 4.3316662267056E+31
n5 3.5141373449408E+39

Nth Root

y√n
2√n 9007.0354723405
3√n 432.90032854586
4√n 94.905402756326
5√n 38.179720895141

Divisors of 81126688

1, 2, 4, 8, 16, 29, 32, 58, 116, 232, 464, 928, 87421, 174842, 349684, 699368, 1398736, 2535209, 2797472, 5070418, 10140836, 20281672, 40563344, 81126688

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81126687
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81126688 can be divided by 24 positive divisors. The sum of these divisors (counting 81126688) is 1, the average is 0.041666666666667.

Base conversion 81126688

Base System Value
2 Binary 100110101011110010100100000
3 Ternary 12122122122220011
4 Quaternary 10311132110200
5 Quinary 131232023223
6 Senary 12014454304
8 Octal 465362440
10 Decimal 81126688
12 Duodecimal 23204394
16 Hexadecimal 4d5e520
20 Vigesimal 1570ge8
36 Base36 1catr4

Cryptographic Hash Functions

md5 dc5b01b2c0568ceca44253082a55ad74
sha1 c578005e39c0642fd49950ad0b6cbb9c73af8601
sha256 5e8295039e38407a76f23c460157c5d8765a4a3570144d5b24a1d7f4f34009f0
sha512 2ba965a1f954c1e65b08e1da36fe7e1409e75d1dc022e5048f2d1ee544420ca30bf7bcca5f2fd18a7a0933309259bbab17b2b91d0259ded5a9a39cb83fcc8655
ripemd-160 56925a5ece6c5c155d88713b5991ae084d399a7d

81126688 as geometric shapes

Circle

Radius = n
Diameter 162253376
Circumference 509734014.06174
Area 2.0676516160887E+16

Sphere

Radius = n
Volume 2.2365563673483E+24
Surface area 8.2706064643549E+16
Circumference 509734014.06174

Square

Length = n
Perimeter 324506752
Area 6581539505849344
Diagonal 114730462.44001

Cube

Length = n
Surface area 39489237035096064
Volume 5.3393850205071E+23
Space diagonal 140515545.46579

Equilateral Triangle

Length = n
Perimeter 243380064
Area 2.8498902040382E+15
Altitude 70257772.732894

Triangular Pyramid

Length = n
Surface area 2.8498902040382E+15
Volume 6.2925255922775E+22
Height 38243487.480004