81253492 (number)

81253492 is an even 8-digits composite number following 81253491 and preceding 81253493. In scientific notation, it is written as 8.1253492 × 10^7. The sum of its digits is 34. It has a total of 4 prime factors and 12 positive divisors. There are 40571840 positive integers (up to 81253492) that are relatively prime to 81253492.

Interesting facts

Basic properties

Name

Name eighty-one million two hundred fifty-three thousand four hundred ninety-two

Notation

Scientific notation 8.1253492 × 10^7
Engineering notation 8.1253492 × 10^6

Prime Factorization of 81253492

Prime Factorization 2 × 2 × 761 × 26693

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 40626746
Product of the distinct prime numbers

The prime factorization of 81253492 is 2 × 2 × 761 × 26693. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 5, 49, 54, 73, 45, 2193, 4062, 83079, 50798, 152011, 117437, 5118779, 4743620, 59577135, 27507898, 89951504, 716241853, 8655779023, 3115871342

Basic calculations (n = 81253492)

Multiplication

n×y
n×2 162506984
n×3 243760476
n×4 325013968
n×5 406267460

Division

n÷y
n÷2 40626746
n÷3 27084497.333333
n÷3 20313373
n÷5 16250698.4

Exponentiation

ny
n2 6602129962194064
n3 5.364461140661E+23
n4 4.3588120037701E+31
n5 3.5416869627783E+39

Nth Root

y√n
2√n 9014.0718878873
3√n 433.12575751891
4√n 94.942466198679
5√n 38.191648701897

Divisors of 81253492

1, 2, 4, 761, 1522, 3044, 26693, 53386, 106772, 20313373, 40626746, 81253492

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 -81253491
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 81253492 can be divided by 12 positive divisors. The sum of these divisors (counting 81253492) is 1, the average is 0.083333333333333.

Base conversion 81253492

Base System Value
2 Binary 100110101111101010001110100
3 Ternary 12122220002211121
4 Quaternary 10311331101310
5 Quinary 131300102432
6 Senary 12021313324
8 Octal 465752164
10 Decimal 81253492
12 Duodecimal 23265844
16 Hexadecimal 4d7d474
20 Vigesimal 157gdec
36 Base36 1cdjlg

Cryptographic Hash Functions

md5 de2d7e69582e2177780426e64ac89164
sha1 2eced24b8abebdef04140c390357dc739511df0b
sha256 d6824f6deae4da94f6ea53738ea2ac58a4b3152d6f0151183d6d174075018f7b
sha512 30213a9728eb7ba20bc516d855f57ae918f9ab282ee5845f12e8f5fe33ec2d497cbbc931b269f9eb94ec29e7f0035c5fc872afa0018a733f0a39bf2b1c48b367
ripemd-160 7a8557841d524b7da85ce7508c26a89976c830f8

81253492 as geometric shapes

Circle

Radius = n
Diameter 162506984
Circumference 510530747.09143
Area 2.0741202987274E+16

Sphere

Radius = n
Volume 2.2470602279958E+24
Surface area 8.2964811949096E+16
Circumference 510530747.09143

Square

Length = n
Perimeter 325013968
Area 6602129962194064
Diagonal 114909790.37657

Cube

Length = n
Surface area 39612779773164384
Volume 5.364461140661E+23
Space diagonal 140735176.43639

Equilateral Triangle

Length = n
Perimeter 243760476
Area 2.8588061331732E+15
Altitude 70367588.218196

Triangular Pyramid

Length = n
Surface area 2.8588061331732E+15
Volume 6.3220780832885E+22
Height 38303263.458858