81249916 (number)

81249916 is an even 8-digits composite number following 81249915 and preceding 81249917. In scientific notation, it is written as 8.1249916 × 10^7. The sum of its digits is 40. It has a total of 5 prime factors and 24 positive divisors. There are 36549120 positive integers (up to 81249916) that are relatively prime to 81249916.

Interesting facts

Basic properties

Name

Name eighty-one million two hundred forty-nine thousand nine hundred sixteen

Notation

Scientific notation 8.1249916 × 10^7
Engineering notation 8.1249916 × 10^6

Prime Factorization of 81249916

Prime Factorization 2 × 2 × 11 × 97 × 19037

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 40624958
Product of the distinct prime numbers

The prime factorization of 81249916 is 2 × 2 × 11 × 97 × 19037. Since it has a total of 5 prime factors.

Most popular turbo-numbers

1, 2, 66, 12, 41, 782, 8864, 3681, 42446, 97482, 382360, 588216, 3408714, 4219349, 71377670, 78703444, 689151685, 139389798, 1323518665, 9840206783

Basic calculations (n = 81249916)

Multiplication

n×y
n×2 162499832
n×3 243749748
n×4 324999664
n×5 406249580

Division

n÷y
n÷2 40624958
n÷3 27083305.333333
n÷3 20312479
n÷5 16249983.2

Exponentiation

ny
n2 6601548850007056
n3 5.3637528953297E+23
n4 4.3580447219029E+31
n5 3.5409076757886E+39

Nth Root

y√n
2√n 9013.8735291771
3√n 433.11940341074
4√n 94.941421567075
5√n 38.191312529908

Divisors of 81249916

1, 2, 4, 11, 22, 44, 97, 194, 388, 1067, 2134, 4268, 19037, 38074, 76148, 209407, 418814, 837628, 1846589, 3693178, 7386356, 20312479, 40624958, 81249916

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 -81249915
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 81249916 can be divided by 24 positive divisors. The sum of these divisors (counting 81249916) is 1, the average is 0.041666666666667.

Base conversion 81249916

Base System Value
2 Binary 100110101111100011001111100
3 Ternary 12122212220221011
4 Quaternary 10311330121330
5 Quinary 131244444131
6 Senary 12021245004
8 Octal 465743174
10 Decimal 81249916
12 Duodecimal 23263764
16 Hexadecimal 4d7c67c
20 Vigesimal 157g4fg
36 Base36 1cdgu4

Cryptographic Hash Functions

md5 562e6e2301539b613a2bbb9c7ad3ac4e
sha1 896a44f2a7a3c74903c694c7157128a1cbc186fd
sha256 a578a18f084759c814c5dac1090efc12a208bad8c4c14339b262afabc656b401
sha512 95f01583390064171855be7dc31b3bc5c805a7dcd225fb17b1b93f5f55629e65f9a85a8506e91aa96b0f7f8a312477a1b2eacce700c47252d747e4a400e0cdee
ripemd-160 fb0a27c6228ef3b24c855fab5d1ede83c9c5251c

81249916 as geometric shapes

Circle

Radius = n
Diameter 162499832
Circumference 510508278.42078
Area 2.0739377369496E+16

Sphere

Radius = n
Volume 2.2467635588852E+24
Surface area 8.2957509477985E+16
Circumference 510508278.42078

Square

Length = n
Perimeter 324999664
Area 6601548850007056
Diagonal 114904733.14887

Cube

Length = n
Surface area 39609293100042336
Volume 5.3637528953297E+23
Space diagonal 140728982.6227

Equilateral Triangle

Length = n
Perimeter 243749748
Area 2.858554504215E+15
Altitude 70364491.311352

Triangular Pyramid

Length = n
Surface area 2.858554504215E+15
Volume 6.321243408161E+22
Height 38301577.716292