81407584 (number)

81407584 is an even 8-digits composite number following 81407583 and preceding 81407585. In scientific notation, it is written as 8.1407584 × 10^7. The sum of its digits is 37. It has a total of 7 prime factors and 24 positive divisors. There are 40652160 positive integers (up to 81407584) that are relatively prime to 81407584.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred seven thousand five hundred eighty-four

Notation

Scientific notation 8.1407584 × 10^7
Engineering notation 8.1407584 × 10^6

Prime Factorization of 81407584

Prime Factorization 2 × 2 × 2 × 2 × 2 × 1861 × 1367

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 5087974
Product of the distinct prime numbers

The prime factorization of 81407584 is 2 × 2 × 2 × 2 × 2 × 1861 × 1367. Since it has a total of 7 prime factors.

Most popular turbo-numbers

7, 6, 41, 27, 663, 316, 6102, 5371, 93746, 5818, 746948, 110033, 1191122, 7727286, 33258325, 1303141, 745214779, 186867153, 4464472561, 4169420333

Basic calculations (n = 81407584)

Multiplication

n×y
n×2 162815168
n×3 244222752
n×4 325630336
n×5 407037920

Division

n÷y
n÷2 40703792
n÷3 27135861.333333
n÷3 20351896
n÷5 16281516.8

Exponentiation

ny
n2 6627194732717056
n3 5.3950391188802E+23
n4 4.3919710025353E+31
n5 3.5753974831445E+39

Nth Root

y√n
2√n 9022.6151419641
3√n 433.39938296296
4√n 94.987447286282
5√n 38.20612332503

Divisors of 81407584

1, 2, 4, 8, 16, 32, 1367, 1861, 2734, 3722, 5468, 7444, 10936, 14888, 21872, 29776, 43744, 59552, 2543987, 5087974, 10175948, 20351896, 40703792, 81407584

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 -81407583
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 81407584 can be divided by 24 positive divisors. The sum of these divisors (counting 81407584) is 1, the average is 0.041666666666667.

Base conversion 81407584

Base System Value
2 Binary 100110110100010111001100000
3 Ternary 12200011221012201
4 Quaternary 10312202321200
5 Quinary 131320020314
6 Senary 12024502544
8 Octal 466427140
10 Decimal 81407584
12 Duodecimal 2331aa54
16 Hexadecimal 4da2e60
20 Vigesimal 158fij4
36 Base36 1cguhs

Cryptographic Hash Functions

md5 544feab32b92020e152bf09981751819
sha1 db64ab4455cc857b05dd341ff111f5232cc8406c
sha256 94694e82b83cf8e4cfd50cc93380b23f24b98be0c323763dcf5f2c705dd79031
sha512 583c4244dedc9e41b7fb817cc9ce89cb9207c63884a6cdd600777036a7c2cc83fcde2ae09eacbc236c81e0d32e2ccf5338923ccf435310317eb64beb52e00494
ripemd-160 556f7f1ba349d91e881360caba2662ee64ef41dc

81407584 as geometric shapes

Circle

Radius = n
Diameter 162815168
Circumference 511498935.68179
Area 2.0819946286213E+16

Sphere

Radius = n
Volume 2.2598687015605E+24
Surface area 8.3279785144852E+16
Circumference 511498935.68179

Square

Length = n
Perimeter 325630336
Area 6627194732717056
Diagonal 115127709.37283

Cube

Length = n
Surface area 39763168396302336
Volume 5.3950391188802E+23
Space diagonal 141002071.60943

Equilateral Triangle

Length = n
Perimeter 244222752
Area 2.8696594971797E+15
Altitude 70501035.804716

Triangular Pyramid

Length = n
Surface area 2.8696594971797E+15
Volume 6.3581145762115E+22
Height 38375903.124276