81231377 (number)

81231377 is an odd 8-digits composite number following 81231376 and preceding 81231378. In scientific notation, it is written as 8.1231377 × 10^7. The sum of its digits is 32. It has a total of 4 prime factors and 16 positive divisors. There are 73880400 positive integers (up to 81231377) that are relatively prime to 81231377.

Interesting facts

Basic properties

Name

Name eighty-one million two hundred thirty-one thousand three hundred seventy-seven

Notation

Scientific notation 8.1231377 × 10^7
Engineering notation 8.1231377 × 10^6

Prime Factorization of 81231377

Prime Factorization 31 × 23 × 59 × 1931

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81231377
Product of the distinct prime numbers

The prime factorization of 81231377 is 31 × 23 × 59 × 1931. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 7, 62, 76, 152, 381, 6555, 2305, 81956, 43163, 787569, 663311, 3348501, 3602728, 75524759, 81623832, 699424977, 570012, 1462943005, 7458040444

Basic calculations (n = 81231377)

Multiplication

n×y
n×2 162462754
n×3 243694131
n×4 324925508
n×5 406156885

Division

n÷y
n÷2 40615688.5
n÷3 27077125.666667
n÷3 20307844.25
n÷5 16246275.4

Exponentiation

ny
n2 6598536609316129
n3 5.3600821495966E+23
n4 4.3540685384485E+31
n5 3.5368698293055E+39

Nth Root

y√n
2√n 9012.8451112842
3√n 433.08645891962
4√n 94.936005347203
5√n 38.189569529034

Divisors of 81231377

1, 23, 31, 59, 713, 1357, 1829, 1931, 42067, 44413, 59861, 113929, 1376803, 2620367, 3531799, 81231377

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -81231376
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81231377 can be divided by 16 positive divisors. The sum of these divisors (counting 81231377) is 1, the average is 0.0625.

Base conversion 81231377

Base System Value
2 Binary 100110101110111111000010001
3 Ternary 12122211222111112
4 Quaternary 10311313320101
5 Quinary 131243401002
6 Senary 12021023105
8 Octal 465677021
10 Decimal 81231377
12 Duodecimal 23254a95
16 Hexadecimal 4d77e11
20 Vigesimal 157di8h
36 Base36 1cd2j5

Cryptographic Hash Functions

md5 d6824bc8b5333aca5b7413d3b48c4d56
sha1 3ecf33e7bda86f9fe500eb08ff17671bfc79ddde
sha256 6b4e49ddb0fa6733ea70dcb2a086e71f02b307e0428a4d8dfa79d40a54f51550
sha512 bbcf9ecbc9f02782cbac044d9c77fa94e5a43339097d49b339a5d5da73b7921f77fb18a11e42e526834dd068a7877d41ded5631775a3c2aeb27f324afda9ac27
ripemd-160 815f80c2e578dde67efe51563f320f0ce8eb96ba

81231377 as geometric shapes

Circle

Radius = n
Diameter 162462754
Circumference 510391794.44837
Area 2.0729914136271E+16

Sphere

Radius = n
Volume 2.2452259605081E+24
Surface area 8.2919656545083E+16
Circumference 510391794.44837

Square

Length = n
Perimeter 324925508
Area 6598536609316129
Diagonal 114878515.04364

Cube

Length = n
Surface area 39591219655896774
Volume 5.3600821495966E+23
Space diagonal 140696872.13278

Equilateral Triangle

Length = n
Perimeter 243694131
Area 2.8572501657347E+15
Altitude 70348436.066391

Triangular Pyramid

Length = n
Surface area 2.8572501657347E+15
Volume 6.3169173928279E+22
Height 38292838.347881