81672816 (number)

81672816 is an even 8-digits composite number following 81672815 and preceding 81672817. In scientific notation, it is written as 8.1672816 × 10^7. The sum of its digits is 39. It has a total of 8 prime factors and 80 positive divisors. There are 25132800 positive integers (up to 81672816) that are relatively prime to 81672816.

Interesting facts

Basic properties

Name

Name eighty-one million six hundred seventy-two thousand eight hundred sixteen

Notation

Scientific notation 8.1672816 × 10^7
Engineering notation 8.1672816 × 10^6

Prime Factorization of 81672816

Prime Factorization 2 × 2 × 2 × 2 × 3 × 23 × 29 × 2551

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 8
Total number of prime factors
rad Radical 10209102
Product of the distinct prime numbers

The prime factorization of 81672816 is 2 × 2 × 2 × 2 × 3 × 23 × 29 × 2551. Since it has a total of 8 prime factors.

Most popular turbo-numbers

4, 8, 43, 80, 328, 385, 5177, 9176, 75533, 52452, 718167, 285172, 9045628, 8580302, 94148795, 14247256, 695088313, 753675187, 3232876374, 227627393

Basic calculations (n = 81672816)

Multiplication

n×y
n×2 163345632
n×3 245018448
n×4 326691264
n×5 408364080

Division

n÷y
n÷2 40836408
n÷3 27224272
n÷3 20418204
n÷5 16334563.2

Exponentiation

ny
n2 6670448873369856
n3 5.4479434347214E+23
n4 4.4494888172241E+31
n5 3.634022814632E+39

Nth Root

y√n
2√n 9037.3013671118
3√n 433.86955525283
4√n 95.064721990398
5√n 38.230986625227

Divisors of 81672816

1, 2, 3, 4, 6, 8, 12, 16, 23, 24, 29, 46, 48, 58, 69, 87, 92, 116, 138, 174, 184, 232, 276, 348, 368, 464, 552, 667, 696, 1104, 1334, 1392, 2001, 2551, 2668, 4002, 5102, 5336, 7653, 8004, 10204, 10672, 15306, 16008, 20408, 30612, 32016, 40816, 58673, 61224, 73979, 117346, 122448, 147958, 176019, 221937, 234692, 295916, 352038, 443874, 469384, 591832, 704076, 887748, 938768, 1183664, 1408152, 1701517, 1775496, 2816304, 3403034, 3550992, 5104551, 6806068, 10209102, 13612136, 20418204, 27224272, 40836408, 81672816

80 divisors

τ Total Divisors 80
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81672815
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0125
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 80
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81672816 can be divided by 80 positive divisors. The sum of these divisors (counting 81672816) is 1, the average is 0.0125.

Base conversion 81672816

Base System Value
2 Binary 100110111100011101001110000
3 Ternary 12200200102001010
4 Quaternary 10313203221300
5 Quinary 131402012231
6 Senary 12034310520
8 Octal 467435160
10 Decimal 81672816
12 Duodecimal 23428440
16 Hexadecimal 4de3a70
20 Vigesimal 15a920g
36 Base36 1cmj5c

Cryptographic Hash Functions

md5 78640d754e87e55f0fd1e726e3ccbe59
sha1 1126dcc2ed1ce2df065a731dc4c8bb556ba81a8c
sha256 3c5f0ac226a62f5d8b65453195b7af48fbc7925af797d636ed4bac407b8d12e5
sha512 9888de312b95ab5fa8dfa14497e6dfbf4658b1ae5464d5dc2b712f30cf0d6570131b41a08263da39a0695050fbb925be23483854b15207856f593a4ca0188b4c
ripemd-160 5ef10ca90e13b2a755b5173cbaa7643141e49be3

81672816 as geometric shapes

Circle

Radius = n
Diameter 163345632
Circumference 513165437.48718
Area 2.0955833176725E+16

Sphere

Radius = n
Volume 2.2820292095591E+24
Surface area 8.38233327069E+16
Circumference 513165437.48718

Square

Length = n
Perimeter 326691264
Area 6670448873369856
Diagonal 115502804.0644

Cube

Length = n
Surface area 40022693240219136
Volume 5.4479434347214E+23
Space diagonal 141461466.90922

Equilateral Triangle

Length = n
Perimeter 245018448
Area 2.8883890894918E+15
Altitude 70730733.454612

Triangular Pyramid

Length = n
Surface area 2.8883890894918E+15
Volume 6.4204629103538E+22
Height 38500934.688134