81492964 (number)

81492964 is an even 8-digits composite number following 81492963 and preceding 81492965. In scientific notation, it is written as 8.1492964 × 10^7. The sum of its digits is 43. It has a total of 4 prime factors and 12 positive divisors. There are 34925544 positive integers (up to 81492964) that are relatively prime to 81492964.

Interesting facts

Basic properties

Name

Name eighty-one million four hundred ninety-two thousand nine hundred sixty-four

Notation

Scientific notation 8.1492964 × 10^7
Engineering notation 8.1492964 × 10^6

Prime Factorization of 81492964

Prime Factorization 2 × 2 × 7 × 2910463

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 40746482
Product of the distinct prime numbers

The prime factorization of 81492964 is 2 × 2 × 7 × 2910463. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 7, 61, 27, 776, 211, 5507, 3784, 26943, 34998, 534254, 85800, 3639194, 7978316, 98819090, 67232455, 903890085, 273031401, 4397489289, 300434173

Basic calculations (n = 81492964)

Multiplication

n×y
n×2 162985928
n×3 244478892
n×4 325971856
n×5 407464820

Division

n÷y
n÷2 40746482
n÷3 27164321.333333
n÷3 20373241
n÷5 16298592.8

Exponentiation

ny
n2 6641103181505296
n3 5.412031824907E+23
n4 4.41042514674E+31
n5 3.5941861770798E+39

Nth Root

y√n
2√n 9027.3453462244
3√n 433.55084596186
4√n 95.01234312564
5√n 38.214134055785

Divisors of 81492964

1, 2, 4, 7, 14, 28, 2910463, 5820926, 11641852, 20373241, 40746482, 81492964

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81492963
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81492964 can be divided by 12 positive divisors. The sum of these divisors (counting 81492964) is 1, the average is 0.083333333333333.

Base conversion 81492964

Base System Value
2 Binary 100110110110111101111100100
3 Ternary 12200100021022221
4 Quaternary 10312313233210
5 Quinary 131330233324
6 Senary 12030402124
8 Octal 466675744
10 Decimal 81492964
12 Duodecimal 23360344
16 Hexadecimal 4db7be4
20 Vigesimal 1596c84
36 Base36 1ciodg

Cryptographic Hash Functions

md5 777de69a4c93d5a04506c24f971d9f24
sha1 4eeaf9e49f5b2b7e68dddea0d1685ab63e50d683
sha256 c6162a833caa2d49269aca1eb3e6bbec69a13af698cba6d799d0bac9dd1fb01f
sha512 2f7d79944b7f505999ff789958eafaa152d2c42768cd99ee76e9eaf6fb9d293a0cd086195634a59ebf3a7e27ad66e808616d2781f44d6038821304bdd21df1ca
ripemd-160 a2eaaef30335c6f9b67b6b4e7c1d0e4620cd6cc0

81492964 as geometric shapes

Circle

Radius = n
Diameter 162985928
Circumference 512035394.04331
Area 2.0863640966749E+16

Sphere

Radius = n
Volume 2.2669865896163E+24
Surface area 8.3454563866995E+16
Circumference 512035394.04331

Square

Length = n
Perimeter 325971856
Area 6641103181505296
Diagonal 115248454.92678

Cube

Length = n
Surface area 39846619089031776
Volume 5.412031824907E+23
Space diagonal 141149954.10738

Equilateral Triangle

Length = n
Perimeter 244478892
Area 2.8756820321686E+15
Altitude 70574977.053691

Triangular Pyramid

Length = n
Surface area 2.8756820321686E+15
Volume 6.3781406723152E+22
Height 38416151.642261