81489772 (number)

81489772 is an even 8-digits composite number following 81489771 and preceding 81489773. In scientific notation, it is written as 8.1489772 × 10^7. The sum of its digits is 46. It has a total of 7 prime factors and 72 positive divisors. There are 30311424 positive integers (up to 81489772) that are relatively prime to 81489772.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred eighty-nine thousand seven hundred seventy-two

Notation

Scientific notation 8.1489772 × 10^7
Engineering notation 8.1489772 × 10^6

Prime Factorization of 81489772

Prime Factorization 2 × 2 × 13 × 7 × 17 × 13 × 1013

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 3134222
Product of the distinct prime numbers

The prime factorization of 81489772 is 2 × 2 × 13 × 7 × 17 × 13 × 1013. Since it has a total of 7 prime factors.

Most popular turbo-numbers

5, 4, 5, 43, 415, 991, 144, 9373, 15164, 31460, 52501, 610776, 2759160, 7005834, 47819153, 3569711, 577120392, 91741906, 9109170402, 59152053

Basic calculations (n = 81489772)

Multiplication

n×y
n×2 162979544
n×3 244469316
n×4 325959088
n×5 407448860

Division

n÷y
n÷2 40744886
n÷3 27163257.333333
n÷3 20372443
n÷5 16297954.4

Exponentiation

ny
n2 6640582940611984
n3 5.4113958977756E+23
n4 4.4097341791147E+31
n5 3.5934823283666E+39

Nth Root

y√n
2√n 9027.1685483323
3√n 433.54518529988
4√n 95.011412726747
5√n 38.213834689014

Divisors of 81489772

1, 2, 4, 7, 13, 14, 17, 26, 28, 34, 52, 68, 91, 119, 169, 182, 221, 238, 338, 364, 442, 476, 676, 884, 1013, 1183, 1547, 2026, 2366, 2873, 3094, 4052, 4732, 5746, 6188, 7091, 11492, 13169, 14182, 17221, 20111, 26338, 28364, 34442, 40222, 52676, 68884, 80444, 92183, 120547, 171197, 184366, 223873, 241094, 342394, 368732, 447746, 482188, 684788, 895492, 1198379, 1567111, 2396758, 2910349, 3134222, 4793516, 5820698, 6268444, 11641396, 20372443, 40744886, 81489772

72 divisors

τ Total Divisors 72
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81489771
Sum of the proper positive divisors of n
A Arithmetic Mean 0.013888888888889
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 72
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81489772 can be divided by 72 positive divisors. The sum of these divisors (counting 81489772) is 1, the average is 0.013888888888889.

Base conversion 81489772

Base System Value
2 Binary 100110110110110111101101100
3 Ternary 12200100002221201
4 Quaternary 10312312331230
5 Quinary 131330133042
6 Senary 12030335244
8 Octal 466667554
10 Decimal 81489772
12 Duodecimal 2335a524
16 Hexadecimal 4db6f6c
20 Vigesimal 159648c
36 Base36 1cilws

Cryptographic Hash Functions

md5 1ff4428e81b63ab67dc134b926fa4769
sha1 7a23305b2aea4baf86805f23d5e63b27f26ddc48
sha256 fedc919bab8bed8eac132f33decd8124d75f12e442c61802f97c591c82f570b0
sha512 b4ad38c17d4f26ec06fe57daae4ea2b11f51474c72c24b6752e2e1ce082cb6e7468dbc90e3944b833c7b0103d5f4f6048f0902af6216def45cd307ade85b68d0
ripemd-160 f2e10d2db50b7b730ecfdaf60abcef8f677c9867

81489772 as geometric shapes

Circle

Radius = n
Diameter 162979544
Circumference 512015338.11581
Area 2.086200658178E+16

Sphere

Radius = n
Volume 2.2667202130824E+24
Surface area 8.3448026327121E+16
Circumference 512015338.11581

Square

Length = n
Perimeter 325959088
Area 6640582940611984
Diagonal 115243940.75709

Cube

Length = n
Surface area 39843497643671904
Volume 5.4113958977756E+23
Space diagonal 141144425.4012

Equilateral Triangle

Length = n
Perimeter 244469316
Area 2.8754567612538E+15
Altitude 70572212.700602

Triangular Pyramid

Length = n
Surface area 2.8754567612538E+15
Volume 6.3773912250037E+22
Height 38414646.91903