81497870 (number)

81497870 is an even 8-digits composite number following 81497869 and preceding 81497871. In scientific notation, it is written as 8.1497870 × 10^7. The sum of its digits is 44. It has a total of 4 prime factors and 16 positive divisors. There are 32539584 positive integers (up to 81497870) that are relatively prime to 81497870.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred ninety-seven thousand eight hundred seventy

Notation

Scientific notation 8.1497870 × 10^7
Engineering notation 8.1497870 × 10^6

Prime Factorization of 81497870

Prime Factorization 2 × 5 × 569 × 14323

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81497870
Product of the distinct prime numbers

The prime factorization of 81497870 is 2 × 5 × 569 × 14323. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 6, 53, 54, 185, 40, 9967, 263, 12633, 64255, 710179, 830232, 8689480, 6598930, 2125379, 72930495, 469792085, 998171818, 4148194207, 7327575683

Basic calculations (n = 81497870)

Multiplication

n×y
n×2 162995740
n×3 244493610
n×4 325991480
n×5 407489350

Division

n÷y
n÷2 40748935
n÷3 27165956.666667
n÷3 20374467.5
n÷5 16299574

Exponentiation

ny
n2 6641902814536900
n3 5.4130093213176E+23
n4 4.4114872997753E+31
n5 3.5952681846374E+39

Nth Root

y√n
2√n 9027.6170720739
3√n 433.55954592672
4√n 95.01377306514
5√n 38.214594154468

Divisors of 81497870

1, 2, 5, 10, 569, 1138, 2845, 5690, 14323, 28646, 71615, 143230, 8149787, 16299574, 40748935, 81497870

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81497869
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81497870 can be divided by 16 positive divisors. The sum of these divisors (counting 81497870) is 1, the average is 0.0625.

Base conversion 81497870

Base System Value
2 Binary 100110110111000111100001110
3 Ternary 12200100112001122
4 Quaternary 10312320330032
5 Quinary 131330412440
6 Senary 12030440542
8 Octal 466707416
10 Decimal 81497870
12 Duodecimal 23363152
16 Hexadecimal 4db8f0e
20 Vigesimal 15974da
36 Base36 1cis5q

Cryptographic Hash Functions

md5 16c98d24f5f991099bb0a0880662ac22
sha1 b94e68ed04b43380adc5ec448d7b5df3b210ea96
sha256 1862f2da7cf1095015e72e08f4e60de587921b651bbd32f8f627a6357b97baf4
sha512 cc2f7fdcede359c6d75505883acc5f21c76426b63c74089758e47e978ea86ee880a0cf7a4ae3f671f0e0421d6dafd3ced7dd28f6eeb96be83dc82a9d9a4e2dce
ripemd-160 f93c973a907ff7d52e2210f509550b646d8b69e9

81497870 as geometric shapes

Circle

Radius = n
Diameter 162995740
Circumference 512066219.35043
Area 2.0866153088006E+16

Sphere

Radius = n
Volume 2.2673960423553E+24
Surface area 8.3464612352026E+16
Circumference 512066219.35043

Square

Length = n
Perimeter 325991480
Area 6641902814536900
Diagonal 115255393.05852

Cube

Length = n
Surface area 39851416887221400
Volume 5.4130093213176E+23
Space diagonal 141158451.54864

Equilateral Triangle

Length = n
Perimeter 244493610
Area 2.8760282834282E+15
Altitude 70579225.774322

Triangular Pyramid

Length = n
Surface area 2.8760282834282E+15
Volume 6.3792926628828E+22
Height 38418464.35284