81650440 (number)

81650440 is an even 8-digits composite number following 81650439 and preceding 81650441. In scientific notation, it is written as 8.1650440 × 10^7. The sum of its digits is 28. It has a total of 6 prime factors and 32 positive divisors. There are 32612800 positive integers (up to 81650440) that are relatively prime to 81650440.

Interesting facts

Basic properties

Name

Name eighty-one million six hundred fifty thousand four hundred forty

Notation

Scientific notation 8.1650440 × 10^7
Engineering notation 8.1650440 × 10^6

Prime Factorization of 81650440

Prime Factorization 2 × 2 × 2 × 5 × 1091 × 1871

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 20412610
Product of the distinct prime numbers

The prime factorization of 81650440 is 2 × 2 × 2 × 5 × 1091 × 1871. Since it has a total of 6 prime factors.

Most popular turbo-numbers

1, 7, 77, 76, 372, 167, 5156, 1502, 73054, 38737, 407461, 584274, 1077109, 521526, 25975706, 13687835, 477939514, 485819839, 3827387004, 2253135011

Basic calculations (n = 81650440)

Multiplication

n×y
n×2 163300880
n×3 244951320
n×4 326601760
n×5 408252200

Division

n÷y
n÷2 40825220
n÷3 27216813.333333
n÷3 20412610
n÷5 16330088

Exponentiation

ny
n2 6666794352193600
n3 5.4434669224612E+23
n4 4.444614693444E+31
n5 3.6290474535017E+39

Nth Root

y√n
2√n 9036.0633021244
3√n 433.82992904518
4√n 95.058210072168
5√n 38.228891557707

Divisors of 81650440

1, 2, 4, 5, 8, 10, 20, 40, 1091, 1871, 2182, 3742, 4364, 5455, 7484, 8728, 9355, 10910, 14968, 18710, 21820, 37420, 43640, 74840, 2041261, 4082522, 8165044, 10206305, 16330088, 20412610, 40825220, 81650440

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81650439
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81650440 can be divided by 32 positive divisors. The sum of these divisors (counting 81650440) is 1, the average is 0.03125.

Base conversion 81650440

Base System Value
2 Binary 100110111011110001100001000
3 Ternary 12200122021100101
4 Quaternary 10313132030020
5 Quinary 131400303230
6 Senary 12034015144
8 Octal 467361410
10 Decimal 81650440
12 Duodecimal 234174b4
16 Hexadecimal 4dde308
20 Vigesimal 15a6620
36 Base36 1cm1vs

Cryptographic Hash Functions

md5 0d35f39e2b55ee3b62a9897215b8af58
sha1 503149620dc90fc31a8043be90cbc85f38bed8b0
sha256 0b1b081ea1f3d96e81ef0a36b1e8e33d3ed69753b4ade65333b4e20dbd87df2e
sha512 3a20a2dd9b53af7d8eecc0c0a5a7bf6909dee30c7aa8a6b90c379614cea8cabc3ba3311516c3e841f10189f82efdc3aee8d315ad14b70746826e7f72d208e4b7
ripemd-160 dbc7046191aaa12ecadf56a1fdeadbb16f835370

81650440 as geometric shapes

Circle

Radius = n
Diameter 163300880
Circumference 513024844.93275
Area 2.0944352159845E+16

Sphere

Radius = n
Volume 2.2801540924884E+24
Surface area 8.3777408639381E+16
Circumference 513024844.93275

Square

Length = n
Perimeter 326601760
Area 6666794352193600
Diagonal 115471159.62173

Cube

Length = n
Surface area 40000766113161600
Volume 5.4434669224612E+23
Space diagonal 141422710.54035

Equilateral Triangle

Length = n
Perimeter 244951320
Area 2.8868066354031E+15
Altitude 70711355.270177

Triangular Pyramid

Length = n
Surface area 2.8868066354031E+15
Volume 6.4151872900617E+22
Height 38490386.540577