81277980 (number)

81277980 is an even 8-digits composite number following 81277979 and preceding 81277981. In scientific notation, it is written as 8.1277980 × 10^7. The sum of its digits is 42. It has a total of 6 prime factors and 48 positive divisors. There are 18493440 positive integers (up to 81277980) that are relatively prime to 81277980.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1277980 × 10^7
Engineering notation 8.1277980 × 10^6

Prime Factorization of 81277980

Prime Factorization 2 × 2 × 15 × 7 × 431 × 449

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 40638990
Product of the distinct prime numbers

The prime factorization of 81277980 is 2 × 2 × 15 × 7 × 431 × 449. Since it has a total of 6 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81277980)

Multiplication

n×y
n×2 162555960
n×3 243833940
n×4 325111920
n×5 406389900

Division

n÷y
n÷2 40638990
n÷3 27092660
n÷3 20319495
n÷5 16255596

Exponentiation

ny
n2 6606110032880400
n3 5.3693127913025E+23
n4 4.3640689766523E+31
n5 3.5470271100297E+39

Nth Root

y√n
2√n 9015.4301062123
3√n 433.16926464686
4√n 94.949618778657
5√n 38.193950447574

Divisors of 81277980

48 divisors

τ Total Divisors 48
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81277979
Sum of the proper positive divisors of n
A Arithmetic Mean 0.020833333333333
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 48
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81277980 can be divided by 48 positive divisors. The sum of these divisors (counting 81277980) is 1, the average is 0.020833333333333.

Base conversion 81277980

Base System Value
2 Binary 100110110000011010000011100
3 Ternary 12122221100102120
4 Quaternary 10312003100130
5 Quinary 131301343410
6 Senary 12022022540
8 Octal 466032034
10 Decimal 81277980
12 Duodecimal 23277a50
16 Hexadecimal 4d8341c
20 Vigesimal 157jej0
36 Base36 1ce2ho

Cryptographic Hash Functions

md5 07d1370433c631b7a06e5a1a66444d9e
sha1 87f6ce12bb97b5d398207b84d2e92f6921ab7685
sha256 feab4728c195ca8ce1aa96dc6103a51b79deab700a53a7b940fe8969790b1126
sha512 4b25706462cee2b1e91591c56da3c2a1520fc2c80c915c33693179f22857de4c9bb4e7d2883c70ff6bd209947e3ee928c5408c666ef1216b162ec8b7eda045c6
ripemd-160 b2823ae90e1838af43bb85f6a8c38d4c7f9423ae

81277980 as geometric shapes

Circle

Radius = n
Diameter 162555960
Circumference 510684609.73324
Area 2.0753706748103E+16

Sphere

Radius = n
Volume 2.2490924826642E+24
Surface area 8.3014826992412E+16
Circumference 510684609.73324

Square

Length = n
Perimeter 325111920
Area 6606110032880400
Diagonal 114944421.63829

Cube

Length = n
Surface area 39636660197282400
Volume 5.3693127913025E+23
Space diagonal 140777590.89657

Equilateral Triangle

Length = n
Perimeter 243833940
Area 2.8605295543348E+15
Altitude 70388795.448284

Triangular Pyramid

Length = n
Surface area 2.8605295543348E+15
Volume 6.3277958084028E+22
Height 38314807.212763