81940984 (number)

81940984 is an even 8-digits composite number following 81940983 and preceding 81940985. In scientific notation, it is written as 8.1940984 × 10^7. The sum of its digits is 43. It has a total of 5 prime factors and 16 positive divisors. There are 40931232 positive integers (up to 81940984) that are relatively prime to 81940984.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1940984 × 10^7
Engineering notation 8.1940984 × 10^6

Prime Factorization of 81940984

Prime Factorization 2 × 2 × 2 × 1187 × 8629

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 20485246
Product of the distinct prime numbers

The prime factorization of 81940984 is 2 × 2 × 2 × 1187 × 8629. Since it has a total of 5 prime factors.

Most popular turbo-numbers

10, 10, 80, 11, 399, 840, 3399, 4009, 23483, 26471, 700141, 53530, 5590976, 2910044, 10180511, 62990371, 571755109, 909478975, 3564615376, 5229203403

Basic calculations (n = 81940984)

Multiplication

n×y
n×2 163881968
n×3 245822952
n×4 327763936
n×5 409704920

Division

n÷y
n÷2 40970492
n÷3 27313661.333333
n÷3 20485246
n÷5 16388196.8

Exponentiation

ny
n2 6714324858888256
n3 5.5017838583296E+23
n4 4.5082158310685E+31
n5 3.6940764128213E+39

Nth Root

y√n
2√n 9052.1259381429
3√n 434.34389839251
4√n 95.142660978884
5√n 38.256059566306

Divisors of 81940984

1, 2, 4, 8, 1187, 2374, 4748, 8629, 9496, 17258, 34516, 69032, 10242623, 20485246, 40970492, 81940984

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 -81940983
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 81940984 can be divided by 16 positive divisors. The sum of these divisors (counting 81940984) is 1, the average is 0.0625.

Base conversion 81940984

Base System Value
2 Binary 100111000100101000111111000
3 Ternary 12201012000220021
4 Quaternary 10320211013320
5 Quinary 131434102414
6 Senary 12044140224
8 Octal 470450770
10 Decimal 81940984
12 Duodecimal 23537674
16 Hexadecimal 4e251f8
20 Vigesimal 15c2c94
36 Base36 1csa2g

Cryptographic Hash Functions

md5 a00fa82ff450d8c1f83c074b3f8807de
sha1 40479022ef85aafd04950c040b46d633950c9bb3
sha256 f2e2abac722409c2274519b6eb720ab7e07cc2d76d263f69d31d1a8552edec2d
sha512 d74ef4002997a0b058f60cd570a9023aeab4bb3247552bca482267bb5ef0e98b1898c80b5c1882a61b6b4a585cf92cdacfb7af8ddf7e91922ea91b7bde1d0e6b
ripemd-160 cf671999555b25abc815d25d68d824a8ec97a0d9

81940984 as geometric shapes

Circle

Radius = n
Diameter 163881968
Circumference 514850386.72464
Area 2.1093673650499E+16

Sphere

Radius = n
Volume 2.3045818334623E+24
Surface area 8.4374694601995E+16
Circumference 514850386.72464

Square

Length = n
Perimeter 327763936
Area 6714324858888256
Diagonal 115882050.887

Cube

Length = n
Surface area 40285949153329536
Volume 5.5017838583296E+23
Space diagonal 141925947.51019

Equilateral Triangle

Length = n
Perimeter 245822952
Area 2.9073879485293E+15
Altitude 70962973.755094

Triangular Pyramid

Length = n
Surface area 2.9073879485293E+15
Volume 6.4839144580793E+22
Height 38627350.295666