81554744 (number)

81554744 is an even 8-digits composite number following 81554743 and preceding 81554745. In scientific notation, it is written as 8.1554744 × 10^7. The sum of its digits is 38. It has a total of 5 prime factors and 16 positive divisors. There are 40596832 positive integers (up to 81554744) that are relatively prime to 81554744.

Interesting facts

Basic properties

Name

Name eighty-one million five hundred fifty-four thousand seven hundred forty-four

Notation

Scientific notation 8.1554744 × 10^7
Engineering notation 8.1554744 × 10^6

Prime Factorization of 81554744

Prime Factorization 2 × 2 × 2 × 227 × 44909

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 20388686
Product of the distinct prime numbers

The prime factorization of 81554744 is 2 × 2 × 2 × 227 × 44909. Since it has a total of 5 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81554744)

Multiplication

n×y
n×2 163109488
n×3 244664232
n×4 326218976
n×5 407773720

Division

n÷y
n÷2 40777372
n÷3 27184914.666667
n÷3 20388686
n÷5 16310948.8

Exponentiation

ny
n2 6651176268905536
n3 5.4243497790947E+23
n4 4.4238145760052E+31
n5 3.6078306524957E+39

Nth Root

y√n
2√n 9030.766523391
3√n 433.66037691303
4√n 95.030345276606
5√n 38.219926343853

Divisors of 81554744

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 -81554743
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 81554744 can be divided by 16 positive divisors. The sum of these divisors (counting 81554744) is 1, the average is 0.0625.

Base conversion 81554744

Base System Value
2 Binary 100110111000110110100111000
3 Ternary 12200110102002002
4 Quaternary 10313012310320
5 Quinary 131334222434
6 Senary 12032000132
8 Octal 467066470
10 Decimal 81554744
12 Duodecimal 23390048
16 Hexadecimal 4dc6d38
20 Vigesimal 159e6h4
36 Base36 1ck01k

Cryptographic Hash Functions

md5 a212a526c1d6af97e119b5d1f1584d0f
sha1 5e35d2204846a0a5f05841d53868f96ee7b582ef
sha256 72b68c4c028a5ba1cb91e4fab58015f78c53031c6d74dc39232c95fb6c98ab75
sha512 d197bed3601fbe2bf724d5433f8ba1f3484c1e95a60e70bbfd7e5203c5ed9d31089f5df82ce907288837fcb26b10c1bfe657bb5cfd16ffe0179215ad7ca708e4
ripemd-160 f60bd9fe8beacaaf61157aade482d91be247242b

81554744 as geometric shapes

Circle

Radius = n
Diameter 163109488
Circumference 512423569.23159
Area 2.0895286504124E+16

Sphere

Radius = n
Volume 2.2721463222007E+24
Surface area 8.3581146016498E+16
Circumference 512423569.23159

Square

Length = n
Perimeter 326218976
Area 6651176268905536
Diagonal 115335825.04067

Cube

Length = n
Surface area 39907057613433216
Volume 5.4243497790947E+23
Space diagonal 141256960.20627

Equilateral Triangle

Length = n
Perimeter 244664232
Area 2.8800438069602E+15
Altitude 70628480.103137

Triangular Pyramid

Length = n
Surface area 2.8800438069602E+15
Volume 6.3926575205426E+22
Height 38445275.013555