81279244 (number)

81279244 is an even 8-digits composite number following 81279243 and preceding 81279245. In scientific notation, it is written as 8.1279244 × 10^7. The sum of its digits is 37. It has a total of 5 prime factors and 24 positive divisors. There are 37785600 positive integers (up to 81279244) that are relatively prime to 81279244.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 8.1279244 × 10^7
Engineering notation 8.1279244 × 10^6

Prime Factorization of 81279244

Prime Factorization 2 × 2 × 17 × 83 × 14401

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 40639622
Product of the distinct prime numbers

The prime factorization of 81279244 is 2 × 2 × 17 × 83 × 14401. Since it has a total of 5 prime factors.

Most popular turbo-numbers

3, 8, 20, 5, 120, 774, 9939, 1958, 5424, 13418, 27181, 985914, 3936958, 3643797, 83384410, 84024115, 623730650, 711976865, 4261315326, 4335981569

Basic calculations (n = 81279244)

Multiplication

n×y
n×2 162558488
n×3 243837732
n×4 325116976
n×5 406396220

Division

n÷y
n÷2 40639622
n÷3 27093081.333333
n÷3 20319811
n÷5 16255848.8

Exponentiation

ny
n2 6606315505211536
n3 5.3695632988907E+23
n4 4.3643404554398E+31
n5 3.5473029277677E+39

Nth Root

y√n
2√n 9015.5002079752
3√n 433.17151012225
4√n 94.949987930358
5√n 38.194069241996

Divisors of 81279244

1, 2, 4, 17, 34, 68, 83, 166, 332, 1411, 2822, 5644, 14401, 28802, 57604, 244817, 489634, 979268, 1195283, 2390566, 4781132, 20319811, 40639622, 81279244

24 divisors

τ Total Divisors 24
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81279243
Sum of the proper positive divisors of n
A Arithmetic Mean 0.041666666666667
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 24
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81279244 can be divided by 24 positive divisors. The sum of these divisors (counting 81279244) is 1, the average is 0.041666666666667.

Base conversion 81279244

Base System Value
2 Binary 100110110000011100100001100
3 Ternary 12122221102011101
4 Quaternary 10312003210030
5 Quinary 131301413434
6 Senary 12022032444
8 Octal 466034414
10 Decimal 81279244
12 Duodecimal 23278724
16 Hexadecimal 4d8390c
20 Vigesimal 157ji24
36 Base36 1ce3gs

Cryptographic Hash Functions

md5 f3c826458358523ba9348b8bcccbf178
sha1 8354227908400f8bf89a9f7bbcadbe25eb20d365
sha256 5609118303618035e6bb5b85e460934d830775b825f9b9bda3522660b0312bff
sha512 d5b7945f89b8525c1519eae30297330758e07477f4e540b0354f12cfa5284d0b2423018b9bdfdec2336d2d58e51f0f2507a1e30615de1cec929520bbc9331ca6
ripemd-160 c2a9a418f13840cfba3682eb6eac2ae258c147b3

81279244 as geometric shapes

Circle

Radius = n
Diameter 162558488
Circumference 510692551.67946
Area 2.0754352258469E+16

Sphere

Radius = n
Volume 2.2491974150374E+24
Surface area 8.3017409033876E+16
Circumference 510692551.67946

Square

Length = n
Perimeter 325116976
Area 6606315505211536
Diagonal 114946209.20423

Cube

Length = n
Surface area 39637893031269216
Volume 5.3695632988907E+23
Space diagonal 140779780.20879

Equilateral Triangle

Length = n
Perimeter 243837732
Area 2.8606185264641E+15
Altitude 70389890.104394

Triangular Pyramid

Length = n
Surface area 2.8606185264641E+15
Volume 6.3280910344267E+22
Height 38315403.068077