81278274 (number)

81278274 is an even 8-digits composite number following 81278273 and preceding 81278275. In scientific notation, it is written as 8.1278274 × 10^7. The sum of its digits is 39. It has a total of 5 prime factors and 32 positive divisors. There are 20190720 positive integers (up to 81278274) that are relatively prime to 81278274.

Interesting facts

Basic properties

Name

Name eighty-one million two hundred seventy-eight thousand two hundred seventy-four

Notation

Scientific notation 8.1278274 × 10^7
Engineering notation 8.1278274 × 10^6

Prime Factorization of 81278274

Prime Factorization 2 × 21 × 11 × 23 × 7649

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 81278274
Product of the distinct prime numbers

The prime factorization of 81278274 is 2 × 21 × 11 × 23 × 7649. Since it has a total of 5 prime factors.

Most popular turbo-numbers

6, 1, 67, 55, 630, 781, 3284, 2624, 99416, 21741, 745354, 356757, 4105447, 82624, 68418538, 84677912, 974062033, 410713928, 8855130676, 61155344

Basic calculations (n = 81278274)

Multiplication

n×y
n×2 162556548
n×3 243834822
n×4 325113096
n×5 406391370

Division

n÷y
n÷2 40639137
n÷3 27092758
n÷3 20319568.5
n÷5 16255654.8

Exponentiation

ny
n2 6606157824419076
n3 5.3693710574038E+23
n4 4.3641321201133E+31
n5 3.5470912623077E+39

Nth Root

y√n
2√n 9015.4464115761
3√n 433.16978693514
4√n 94.949704641858
5√n 38.193978078687

Divisors of 81278274

1, 2, 11, 21, 22, 23, 42, 46, 231, 253, 462, 483, 506, 966, 5313, 7649, 10626, 15298, 84139, 160629, 168278, 175927, 321258, 351854, 1766919, 1935197, 3533838, 3694467, 3870394, 7388934, 40639137, 81278274

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 -81278273
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 81278274 can be divided by 32 positive divisors. The sum of these divisors (counting 81278274) is 1, the average is 0.03125.

Base conversion 81278274

Base System Value
2 Binary 100110110000011010101000010
3 Ternary 12122221100211110
4 Quaternary 10312003111002
5 Quinary 131301401044
6 Senary 12022024150
8 Octal 466032502
10 Decimal 81278274
12 Duodecimal 23278056
16 Hexadecimal 4d83542
20 Vigesimal 157jfde
36 Base36 1ce2pu

Cryptographic Hash Functions

md5 fe3cbeb49c238754261c471fe35cf95b
sha1 cac3ed80acc535370eaced6e2b4e81893f64e644
sha256 078f1d23a7cb207a8b9b55f23e21e897f8a3b0d13751db4ce8c0ae142ca59d99
sha512 f15b606c87852825f9b60ff9fc3b0528c2d71d266fd987eeb28abde359cbddf680ceae0441579aa0a913fbdb9a3b6079aaa0e1a0555153314dd5a345493de864
ripemd-160 2a44e072a453c1abc57d07a88a1f87eb1d51d33c

81278274 as geometric shapes

Circle

Radius = n
Diameter 162556548
Circumference 510686456.98972
Area 2.075385688965E+16

Sphere

Radius = n
Volume 2.2491168891116E+24
Surface area 8.3015427558599E+16
Circumference 510686456.98972

Square

Length = n
Perimeter 325113096
Area 6606157824419076
Diagonal 114944837.41708

Cube

Length = n
Surface area 39636946946514456
Volume 5.3693710574038E+23
Space diagonal 140778100.1195

Equilateral Triangle

Length = n
Perimeter 243834822
Area 2.8605502486781E+15
Altitude 70389050.059752

Triangular Pyramid

Length = n
Surface area 2.8605502486781E+15
Volume 6.3278644756617E+22
Height 38314945.805692