81280260 (number)

81280260 is an even 8-digits composite number following 81280259 and preceding 81280261. In scientific notation, it is written as 8.1280260 × 10^7. The sum of its digits is 27. It has a total of 6 prime factors and 48 positive divisors. There are 21453120 positive integers (up to 81280260) that are relatively prime to 81280260.

Interesting facts

Basic properties

Name

Name eighty-one million two hundred eighty thousand two hundred sixty

Notation

Scientific notation 8.1280260 × 10^7
Engineering notation 8.1280260 × 10^6

Prime Factorization of 81280260

Prime Factorization 2 × 2 × 27 × 15 × 383 × 131

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 40640130
Product of the distinct prime numbers

The prime factorization of 81280260 is 2 × 2 × 27 × 15 × 383 × 131. Since it has a total of 6 prime factors.

Most popular turbo-numbers

5, 2, 45, 59, 152, 338, 1567, 5079, 45308, 20779, 148809, 374846, 755507, 6397246, 82840237, 8019695, 676389234, 678577454, 6270168560, 4038332819

Basic calculations (n = 81280260)

Multiplication

n×y
n×2 162560520
n×3 243840780
n×4 325121040
n×5 406401300

Division

n÷y
n÷2 40640130
n÷3 27093420
n÷3 20320065
n÷5 16256052

Exponentiation

ny
n2 6606480665667600
n3 5.3697646619044E+23
n4 4.364558678584E+31
n5 3.5475246418056E+39

Nth Root

y√n
2√n 9015.5565551995
3√n 433.17331501281
4√n 94.950284650439
5√n 38.19416472758

Divisors of 81280260

1, 2, 4, 15, 27, 30, 54, 60, 108, 131, 262, 383, 405, 524, 766, 810, 1532, 1620, 1965, 3537, 3930, 5745, 7074, 7860, 10341, 11490, 14148, 20682, 22980, 41364, 50173, 53055, 100346, 106110, 155115, 200692, 212220, 310230, 620460, 752595, 1354671, 1505190, 2709342, 3010380, 5418684, 20320065, 40640130, 81280260

48 divisors

τ Total Divisors 48
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81280259
Sum of the proper positive divisors of n
A Arithmetic Mean 0.020833333333333
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 48
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81280260 can be divided by 48 positive divisors. The sum of these divisors (counting 81280260) is 1, the average is 0.020833333333333.

Base conversion 81280260

Base System Value
2 Binary 100110110000011110100000100
3 Ternary 12122221110120000
4 Quaternary 10312003310010
5 Quinary 131301432020
6 Senary 12022041300
8 Octal 466036404
10 Decimal 81280260
12 Duodecimal 23279230
16 Hexadecimal 4d83d04
20 Vigesimal 15800d0
36 Base36 1ce490

Cryptographic Hash Functions

md5 a5311407688a424bad9f4b1ce85156c3
sha1 3c59957e21ee49b30b29db28baf99e2633598627
sha256 4d4513e64a4b3b0663ae9bec0503d009188940932e688009cff947fe8148dd08
sha512 3510181c00e08ceddb9f28b83955a9528258e0d16a4b0d4f917dfd64810606d3224fe228b838ebf3cfc75bc30f1cfc86f1174782cdb1c95772c26c8c7cd3b104
ripemd-160 c959b037df6363bd31421ed8a8084194be48192e

81280260 as geometric shapes

Circle

Radius = n
Diameter 162560520
Circumference 510698935.39574
Area 2.0754871125344E+16

Sphere

Radius = n
Volume 2.2492817617793E+24
Surface area 8.3019484501377E+16
Circumference 510698935.39574

Square

Length = n
Perimeter 325121040
Area 6606480665667600
Diagonal 114947646.04521

Cube

Length = n
Surface area 39638883994005600
Volume 5.3697646619044E+23
Space diagonal 140781539.97241

Equilateral Triangle

Length = n
Perimeter 243840780
Area 2.8606900430394E+15
Altitude 70390769.986204

Triangular Pyramid

Length = n
Surface area 2.8606900430394E+15
Volume 6.3283283430141E+22
Height 38315882.01507