81938316 (number)

81938316 is an even 8-digits composite number following 81938315 and preceding 81938317. In scientific notation, it is written as 8.1938316 × 10^7. The sum of its digits is 39. It has a total of 4 prime factors and 12 positive divisors. There are 27312768 positive integers (up to 81938316) that are relatively prime to 81938316.

Interesting facts

Basic properties

Name

Name eighty-one million nine hundred thirty-eight thousand three hundred sixteen

Notation

Scientific notation 8.1938316 × 10^7
Engineering notation 8.1938316 × 10^6

Prime Factorization of 81938316

Prime Factorization 2 × 2 × 3 × 6828193

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 40969158
Product of the distinct prime numbers

The prime factorization of 81938316 is 2 × 2 × 3 × 6828193. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 5, 82, 60, 702, 830, 5259, 3419, 93868, 10328, 29101, 164686, 7655576, 1003470, 16480252, 90028127, 481918654, 909769645, 6160119013, 6631739242

Basic calculations (n = 81938316)

Multiplication

n×y
n×2 163876632
n×3 245814948
n×4 327753264
n×5 409691580

Division

n÷y
n÷2 40969158
n÷3 27312772
n÷3 20484579
n÷5 16387663.2

Exponentiation

ny
n2 6713887628915856
n3 5.501246461266E+23
n4 4.5076287093709E+31
n5 3.6934750559911E+39

Nth Root

y√n
2√n 9051.9785682468
3√n 434.33918425948
4√n 95.141886507715
5√n 38.255810439456

Divisors of 81938316

1, 2, 3, 4, 6, 12, 6828193, 13656386, 20484579, 27312772, 40969158, 81938316

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 -81938315
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 81938316 can be divided by 12 positive divisors. The sum of these divisors (counting 81938316) is 1, the average is 0.083333333333333.

Base conversion 81938316

Base System Value
2 Binary 100111000100100011110001100
3 Ternary 12201011220020110
4 Quaternary 10320210132030
5 Quinary 131434011231
6 Senary 12044120020
8 Octal 470443614
10 Decimal 81938316
12 Duodecimal 23536010
16 Hexadecimal 4e2478c
20 Vigesimal 15c25fg
36 Base36 1cs80c

Cryptographic Hash Functions

md5 2735a4e11d74693070b9250dbfb424e2
sha1 84d5d6f0589016f53c0b572df261327fe0a093ae
sha256 c7a78343b2f53f01db9338593561469e1de286cda43d64df4977fe07c53cb079
sha512 24aaeddf7535579a03e04a6e2cbf24d214ef1f345e80170a795e6d46f83ab25d319424f579624b8a2a9dfb8526e40fe78d0fc090b277ba54cfb0f15f68b63fca
ripemd-160 72e6723bb86ee0e1f5061469623c7c6b1d71e25b

81938316 as geometric shapes

Circle

Radius = n
Diameter 163876632
Circumference 514833623.18624
Area 2.1092300052029E+16

Sphere

Radius = n
Volume 2.3043567291067E+24
Surface area 8.4369200208118E+16
Circumference 514833623.18624

Square

Length = n
Perimeter 327753264
Area 6713887628915856
Diagonal 115878277.76521

Cube

Length = n
Surface area 40283325773495136
Volume 5.501246461266E+23
Space diagonal 141921326.39863

Equilateral Triangle

Length = n
Perimeter 245814948
Area 2.9071986223976E+15
Altitude 70960663.199317

Triangular Pyramid

Length = n
Surface area 2.9071986223976E+15
Volume 6.4832811295661E+22
Height 38626092.588404