81944080 (number)

81944080 is an even 8-digits composite number following 81944079 and preceding 81944081. In scientific notation, it is written as 8.1944080 × 10^7. The sum of its digits is 34. It has a total of 7 prime factors and 40 positive divisors. There are 30457856 positive integers (up to 81944080) that are relatively prime to 81944080.

Interesting facts

Basic properties

Name

Name eighty-one million nine hundred forty-four thousand eighty

Notation

Scientific notation 8.1944080 × 10^7
Engineering notation 8.1944080 × 10^6

Prime Factorization of 81944080

Prime Factorization 2 × 2 × 2 × 2 × 5 × 1513 × 677

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 10243010
Product of the distinct prime numbers

The prime factorization of 81944080 is 2 × 2 × 2 × 2 × 5 × 1513 × 677. Since it has a total of 7 prime factors.

Most popular turbo-numbers

1, 2, 26, 54, 976, 93, 6389, 2125, 86831, 84980, 582102, 882812, 7980765, 2598538, 42867993, 44184850, 891994147, 821469016, 1896411976, 2631327653

Basic calculations (n = 81944080)

Multiplication

n×y
n×2 163888160
n×3 245832240
n×4 327776320
n×5 409720400

Division

n÷y
n÷2 40972040
n÷3 27314693.333333
n÷3 20486020
n÷5 16388816

Exponentiation

ny
n2 6714832247046400
n3 5.5024075083855E+23
n4 4.5088972105974E+31
n5 3.6947743373697E+39

Nth Root

y√n
2√n 9052.2969460795
3√n 434.34936863751
4√n 95.14355966685
5√n 38.256348649899

Divisors of 81944080

1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 677, 1354, 1513, 2708, 3026, 3385, 5416, 6052, 6770, 7565, 10832, 12104, 13540, 15130, 24208, 27080, 30260, 54160, 60520, 121040, 1024301, 2048602, 4097204, 5121505, 8194408, 10243010, 16388816, 20486020, 40972040, 81944080

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 -81944079
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 81944080 can be divided by 40 positive divisors. The sum of these divisors (counting 81944080) is 1, the average is 0.025.

Base conversion 81944080

Base System Value
2 Binary 100111000100101111000010000
3 Ternary 12201012012010221
4 Quaternary 10320211320100
5 Quinary 131434202310
6 Senary 12044202424
8 Octal 470457020
10 Decimal 81944080
12 Duodecimal 23539414
16 Hexadecimal 4e25e10
20 Vigesimal 15c3040
36 Base36 1cscgg

Cryptographic Hash Functions

md5 c316b7b1679b2e16988c067c5bf412a8
sha1 90766a20b912f4c31daba2babdae1e9fe165e791
sha256 b17fc0d98eea2ce99c6497421a48d6db607b0a0be930ee60b64cbcac831c74cb
sha512 0e0cdd357643845da605ba04781e83cab84067f3bf07f209206aa1c7270fbf63b70617d1b012303c22a77e40577858fb0b8357cdf1a276618331f2c68864f773
ripemd-160 253e5dfbbf279eb58d8b44d909bfd386d7d2c0b0

81944080 as geometric shapes

Circle

Radius = n
Diameter 163888160
Circumference 514869839.46635
Area 2.1095267657409E+16

Sphere

Radius = n
Volume 2.3048430673868E+24
Surface area 8.4381070629635E+16
Circumference 514869839.46635

Square

Length = n
Perimeter 327776320
Area 6714832247046400
Diagonal 115886429.29219

Cube

Length = n
Surface area 40288993482278400
Volume 5.5024075083855E+23
Space diagonal 141931309.93949

Equilateral Triangle

Length = n
Perimeter 245832240
Area 2.9076076540466E+15
Altitude 70965654.969744

Triangular Pyramid

Length = n
Surface area 2.9076076540466E+15
Volume 6.4846494367186E+22
Height 38628809.764062