81293072 (number)

81293072 is an even 8-digits composite number following 81293071 and preceding 81293073. In scientific notation, it is written as 8.1293072 × 10^7. The sum of its digits is 32. It has a total of 7 prime factors and 40 positive divisors. There are 34515072 positive integers (up to 81293072) that are relatively prime to 81293072.

Interesting facts

Basic properties

Name

Name eighty-one million two hundred ninety-three thousand seventy-two

Notation

Scientific notation 8.1293072 × 10^7
Engineering notation 8.1293072 × 10^6

Prime Factorization of 81293072

Prime Factorization 2 × 2 × 2 × 2 × 7 × 109 × 6659

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 10161634
Product of the distinct prime numbers

The prime factorization of 81293072 is 2 × 2 × 2 × 2 × 7 × 109 × 6659. Since it has a total of 7 prime factors.

Most popular turbo-numbers

9, 1, 48, 79, 936, 127, 6366, 8677, 85170, 63969, 136681, 313454, 8591618, 6631673, 2430893, 19151660, 432528766, 707771929, 110566813, 3377119883

Basic calculations (n = 81293072)

Multiplication

n×y
n×2 162586144
n×3 243879216
n×4 325172288
n×5 406465360

Division

n÷y
n÷2 40646536
n÷3 27097690.666667
n÷3 20323268
n÷5 16258614.4

Exponentiation

ny
n2 6608563555197184
n3 5.3723043290922E+23
n4 4.367311226308E+31
n5 3.5503214596667E+39

Nth Root

y√n
2√n 9016.2670767896
3√n 433.19607381852
4√n 94.954026122064
5√n 38.195368741415

Divisors of 81293072

1, 2, 4, 7, 8, 14, 16, 28, 56, 109, 112, 218, 436, 763, 872, 1526, 1744, 3052, 6104, 6659, 12208, 13318, 26636, 46613, 53272, 93226, 106544, 186452, 372904, 725831, 745808, 1451662, 2903324, 5080817, 5806648, 10161634, 11613296, 20323268, 40646536, 81293072

40 divisors

τ Total Divisors 40
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81293071
Sum of the proper positive divisors of n
A Arithmetic Mean 0.025
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 40
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81293072 can be divided by 40 positive divisors. The sum of these divisors (counting 81293072) is 1, the average is 0.025.

Base conversion 81293072

Base System Value
2 Binary 100110110000110111100010000
3 Ternary 12122222010010112
4 Quaternary 10312012330100
5 Quinary 131302334242
6 Senary 12022220452
8 Octal 466067420
10 Decimal 81293072
12 Duodecimal 23284728
16 Hexadecimal 4d86f10
20 Vigesimal 1581cdc
36 Base36 1cee4w

Cryptographic Hash Functions

md5 fea1fe6825bfbb0fe010684156fe70db
sha1 c65c3f7a323e75d282779a31cfc84a596dec7826
sha256 1e353d668f2c79d93054eb0f6b090f41bac646d5e33110486548cfc8b7127b86
sha512 2c6c3eb2e08d9908084575482519342e508c9d2ed1f6ed866a024be43ff57393e76b3ceffbc954c01e5c7be46fc1759d4b7a03760f73bbd4bc45b4d4f1896bb4
ripemd-160 39bca306904e17d96919077ab3284800fcdb1742

81293072 as geometric shapes

Circle

Radius = n
Diameter 162586144
Circumference 510779435.56589
Area 2.0761414715789E+16

Sphere

Radius = n
Volume 2.2503455750833E+24
Surface area 8.3045658863155E+16
Circumference 510779435.56589

Square

Length = n
Perimeter 325172288
Area 6608563555197184
Diagonal 114965764.94937

Cube

Length = n
Surface area 39651381331183104
Volume 5.3723043290922E+23
Space diagonal 140803731.00735

Equilateral Triangle

Length = n
Perimeter 243879216
Area 2.8615919606624E+15
Altitude 70401865.503677

Triangular Pyramid

Length = n
Surface area 2.8615919606624E+15
Volume 6.3313213694982E+22
Height 38321921.649791