81572380 (number)

81572380 is an even 8-digits composite number following 81572379 and preceding 81572381. In scientific notation, it is written as 8.1572380 × 10^7. The sum of its digits is 34. It has a total of 4 prime factors and 12 positive divisors. There are 32628944 positive integers (up to 81572380) that are relatively prime to 81572380.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1572380 × 10^7
Engineering notation 8.1572380 × 10^6

Prime Factorization of 81572380

Prime Factorization 2 × 2 × 5 × 4078619

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 40786190
Product of the distinct prime numbers

The prime factorization of 81572380 is 2 × 2 × 5 × 4078619. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 2, 2, 59, 373, 866, 9020, 7611, 52319, 81937, 824594, 893566, 8821120, 2565294, 99376894, 41168452, 225163355, 91113028, 7652180188, 2891675189

Basic calculations (n = 81572380)

Multiplication

n×y
n×2 163144760
n×3 244717140
n×4 326289520
n×5 407861900

Division

n÷y
n÷2 40786190
n÷3 27190793.333333
n÷3 20393095
n÷5 16314476

Exponentiation

ny
n2 6654053178864400
n3 5.4278695444653E+23
n4 4.4276423707155E+31
n5 3.6117332596811E+39

Nth Root

y√n
2√n 9031.7429104243
3√n 433.69163396733
4√n 95.035482375923
5√n 38.221579192703

Divisors of 81572380

1, 2, 4, 5, 10, 20, 4078619, 8157238, 16314476, 20393095, 40786190, 81572380

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81572379
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81572380 can be divided by 12 positive divisors. The sum of these divisors (counting 81572380) is 1, the average is 0.083333333333333.

Base conversion 81572380

Base System Value
2 Binary 100110111001011001000011100
3 Ternary 12200111022021021
4 Quaternary 10313023020130
5 Quinary 131340304010
6 Senary 12032213524
8 Octal 467131034
10 Decimal 81572380
12 Duodecimal 2339a2a4
16 Hexadecimal 4dcb21c
20 Vigesimal 159gaj0
36 Base36 1ckdng

Cryptographic Hash Functions

md5 d0a1f1e14723bcc675c3c134c15c7b2e
sha1 d041dd5ec5c10a3c4bcb4f1c315d02396164c636
sha256 ce88bfcd529f4dd0b744cc4fd90760e65aa4f2e9e7104ca316d1a6eafad1c366
sha512 7084f9808470456d0724ea7d23cb89cfaee712d60a32c49d2d65f8c7abffd8a0e72b2c9bebb520d0047df9d3aa1edb44a1b331ab63753e96771f73d806219a89
ripemd-160 7625926a96fbfe0473f3b3498ef6a8d66d8f9e9b

81572380 as geometric shapes

Circle

Radius = n
Diameter 163144760
Circumference 512534379.48767
Area 2.0904324583316E+16

Sphere

Radius = n
Volume 2.2736206780715E+24
Surface area 8.3617298333265E+16
Circumference 512534379.48767

Square

Length = n
Perimeter 326289520
Area 6654053178864400
Diagonal 115360766.11105

Cube

Length = n
Surface area 39924319073186400
Volume 5.4278695444653E+23
Space diagonal 141287506.65432

Equilateral Triangle

Length = n
Perimeter 244717140
Area 2.8812895455146E+15
Altitude 70643753.327158

Triangular Pyramid

Length = n
Surface area 2.8812895455146E+15
Volume 6.3968056038123E+22
Height 38453588.703684