81763721 (number)

81763721 is an odd 8-digits composite number following 81763720 and preceding 81763722. In scientific notation, it is written as 8.1763721 × 10^7. The sum of its digits is 35. It has a total of 3 prime factors and 6 positive divisors. There are 75474048 positive integers (up to 81763721) that are relatively prime to 81763721.

Interesting facts

Basic properties

Name

Name eighty-one million seven hundred sixty-three thousand seven hundred twenty-one

Notation

Scientific notation 8.1763721 × 10^7
Engineering notation 8.1763721 × 10^6

Prime Factorization of 81763721

Prime Factorization 13 × 13 × 483809

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 6289517
Product of the distinct prime numbers

The prime factorization of 81763721 is 13 × 13 × 483809. Since it has a total of 3 prime factors.

Most popular turbo-numbers

7, 8, 79, 80, 982, 23, 9526, 2677, 52290, 53863, 75748, 132456, 6639580, 7968163, 64962892, 50316789, 94117373, 425812307, 3128418106, 9853003375

Basic calculations (n = 81763721)

Multiplication

n×y
n×2 163527442
n×3 245291163
n×4 327054884
n×5 408818605

Division

n÷y
n÷2 40881860.5
n÷3 27254573.666667
n÷3 20440930.25
n÷5 16352744.2

Exponentiation

ny
n2 6685306071765841
n3 5.4661550045147E+23
n4 4.4693317273189E+31
n5 3.6542919240895E+39

Nth Root

y√n
2√n 9042.3294012107
3√n 434.0304667605
4√n 95.091163633698
5√n 38.239493351811

Divisors of 81763721

1, 13, 169, 483809, 6289517, 81763721

6 divisors

τ Total Divisors 6
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81763720
Sum of the proper positive divisors of n
A Arithmetic Mean 0.16666666666667
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 6
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81763721 can be divided by 6 positive divisors. The sum of these divisors (counting 81763721) is 1, the average is 0.16666666666667.

Base conversion 81763721

Base System Value
2 Binary 100110111111001110110001001
3 Ternary 12200212000201222
4 Quaternary 10313321312021
5 Quinary 131412414341
6 Senary 12040251425
8 Octal 467716611
10 Decimal 81763721
12 Duodecimal 23470b75
16 Hexadecimal 4df9d89
20 Vigesimal 15b0961
36 Base36 1cohah

Cryptographic Hash Functions

md5 d8fbc4c950211eed7163ba283a2b1ae9
sha1 168eb6fc664755b867223e666f4c0c507e2f1ba1
sha256 cdf6d7a75a172cf3e420cc18a267960dfe6eeae111ab3d2677954e5ac170e93a
sha512 64c970fc97fb8f10544373c0c26844cd385640fb210e7629f5016f22b61bf27a0e400283c3684e2589208f022fee120a48caba5929015e46a2936ad15e477e36
ripemd-160 16e7bccf99fd6d8dbec15cc22c0235fc48a45a8d

81763721 as geometric shapes

Circle

Radius = n
Diameter 163527442
Circumference 513736610.44753
Area 2.1002508442059E+16

Sphere

Radius = n
Volume 2.2896576540755E+24
Surface area 8.4010033768235E+16
Circumference 513736610.44753

Square

Length = n
Perimeter 327054884
Area 6685306071765841
Diagonal 115631363.14829

Cube

Length = n
Surface area 40111836430595046
Volume 5.4661550045147E+23
Space diagonal 141618918.98789

Equilateral Triangle

Length = n
Perimeter 245291163
Area 2.8948224451118E+15
Altitude 70809459.493943

Triangular Pyramid

Length = n
Surface area 2.8948224451118E+15
Volume 6.4419254511819E+22
Height 38543787.716097