81001408 (number)

81001408 is an even 8-digits composite number following 81001407 and preceding 81001409. In scientific notation, it is written as 8.1001408 × 10^7. The sum of its digits is 22. It has a total of 9 prime factors and 56 positive divisors. There are 37029888 positive integers (up to 81001408) that are relatively prime to 81001408.

Interesting facts

Basic properties

Name

Name eighty-one million one thousand four hundred eight

Notation

Scientific notation 8.1001408 × 10^7
Engineering notation 8.1001408 × 10^6

Prime Factorization of 81001408

Prime Factorization 2 × 2 × 2 × 2 × 2 × 2 × 19 × 29 × 2297

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 9
Total number of prime factors
rad Radical 2531294
Product of the distinct prime numbers

The prime factorization of 81001408 is 2 × 2 × 2 × 2 × 2 × 2 × 19 × 29 × 2297. Since it has a total of 9 prime factors.

Most popular turbo-numbers

10, 2, 84, 39, 251, 28, 947, 9308, 80291, 57599, 805015, 160996, 2401919, 4648082, 82236062, 17029544, 670341144, 589160741, 8944004985, 8544190268

Basic calculations (n = 81001408)

Multiplication

n×y
n×2 162002816
n×3 243004224
n×4 324005632
n×5 405007040

Division

n÷y
n÷2 40500704
n÷3 27000469.333333
n÷3 20250352
n÷5 16200281.6

Exponentiation

ny
n2 6561228097982464
n3 5.3146871414574E+23
n4 4.3049714153755E+31
n5 3.4870874604516E+39

Nth Root

y√n
2√n 9000.0782218823
3√n 432.67737809917
4√n 94.868742069674
5√n 38.167921787227

Divisors of 81001408

1, 2, 4, 8, 16, 19, 29, 32, 38, 58, 64, 76, 116, 152, 232, 304, 464, 551, 608, 928, 1102, 1216, 1856, 2204, 2297, 4408, 4594, 8816, 9188, 17632, 18376, 35264, 36752, 43643, 66613, 73504, 87286, 133226, 147008, 174572, 266452, 349144, 532904, 698288, 1065808, 1265647, 1396576, 2131616, 2531294, 2793152, 4263232, 5062588, 10125176, 20250352, 40500704, 81001408

56 divisors

τ Total Divisors 56
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81001407
Sum of the proper positive divisors of n
A Arithmetic Mean 0.017857142857143
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 56
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81001408 can be divided by 56 positive divisors. The sum of these divisors (counting 81001408) is 1, the average is 0.017857142857143.

Base conversion 81001408

Base System Value
2 Binary 100110100111111101111000000
3 Ternary 12122102022001011
4 Quaternary 10310333233000
5 Quinary 131214021113
6 Senary 12012050304
8 Octal 464775700
10 Decimal 81001408
12 Duodecimal 23163994
16 Hexadecimal 4d3fbc0
20 Vigesimal 15653a8
36 Base36 1c8534

Cryptographic Hash Functions

md5 78dfe397eb6f45ad5ec7dc44f9909cea
sha1 57b3e07aa9279cdb52303200843ff4bc6715c477
sha256 e40ab0f515814e27b3f49a011dca4f5e339441a3f97a25bf8101241042d0f7ed
sha512 153450d5a078a527aa7cddbdb24209c4af36d26cab6ec5ad96974ac8879476d92ef2f61c66c89bf3b850c704faf93544d1ed1f8630dc635b0b246a14bcb47a78
ripemd-160 1db6109ea914e69ee6d93c98a988ce90a27f1250

81001408 as geometric shapes

Circle

Radius = n
Diameter 162002816
Circumference 508946856.60646
Area 2.0612705991149E+16

Sphere

Radius = n
Volume 2.2262109439641E+24
Surface area 8.2450823964595E+16
Circumference 508946856.60646

Square

Length = n
Perimeter 324005632
Area 6561228097982464
Diagonal 114553289.76492

Cube

Length = n
Surface area 39367368587894784
Volume 5.3146871414574E+23
Space diagonal 140298554.14062

Equilateral Triangle

Length = n
Perimeter 243004224
Area 2.8410951064385E+15
Altitude 70149277.070308

Triangular Pyramid

Length = n
Surface area 2.8410951064385E+15
Volume 6.2634188626825E+22
Height 38184429.921639