81739969 (number)

81739969 is an odd 8-digits prime number following 81739968 and preceding 81739970. In scientific notation, it is written as 8.1739969 × 10^7. The sum of its digits is 52. It has a total of 1 prime factors and 2 positive divisors. There are 81739968 positive integers (up to 81739969) that are relatively prime to 81739969.

Interesting facts

Basic properties

Name

Name eighty-one million seven hundred thirty-nine thousand nine hundred sixty-nine

Notation

Scientific notation 8.1739969 × 10^7
Engineering notation 8.1739969 × 10^6

Prime Factorization of 81739969

Prime Factorization 81739969

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 81739969
Product of the distinct prime numbers

The prime factorization of 81739969 is 81739969. Since it has a total of 1 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81739969)

Multiplication

n×y
n×2 163479938
n×3 245219907
n×4 326959876
n×5 408699845

Division

n÷y
n÷2 40869984.5
n÷3 27246656.333333
n÷3 20434992.25
n÷5 16347993.8

Exponentiation

ny
n2 6681422532120961
n3 5.4613927065147E+23
n4 4.4641407052734E+31
n5 3.6489872286068E+39

Nth Root

y√n
2√n 9041.0159274276
3√n 433.98843471202
4√n 95.084256990459
5√n 38.237271412809

Divisors of 81739969

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 81739970
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 40869985
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 9041.0159827311
Returns the nth root of the product of n divisors
H Harmonic Mean 1.9999999755322
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81739969 can be divided by 2 positive divisors. The sum of these divisors (counting 81739969) is 81739970, the average is 40869985.

Base conversion 81739969

Base System Value
2 Binary 100110111110100000011000001
3 Ternary 12200210211011021
4 Quaternary 10313310003001
5 Quinary 131411134334
6 Senary 12035545441
8 Octal 467640301
10 Decimal 81739969
12 Duodecimal 2345b281
16 Hexadecimal 4df40c1
20 Vigesimal 15ah9i9
36 Base36 1cnyyp

Cryptographic Hash Functions

md5 45920b09732b52fe694b7e938d724d4a
sha1 a96e8cb8f7486b6a4008acaace21ae1ea7d87320
sha256 600d199d38607a70144f7ae0c46e7f838c10cfe889e08bd7dd672303dd44937f
sha512 f0ad59967e3471dcd73a3be2542beb4fa33af40cc07b2c21b6bea637dc610cc50ccc1c1e370e43571fd82282a1da1a1c6b7bf728db0306023928a8a147a29a20
ripemd-160 d5eb0090aab710b5c7cb74d4b7618f6fefead1a3

81739969 as geometric shapes

Circle

Radius = n
Diameter 163479938
Circumference 513587372.23011
Area 2.0990307942441E+16

Sphere

Radius = n
Volume 2.2876628273541E+24
Surface area 8.3961231769762E+16
Circumference 513587372.23011

Square

Length = n
Perimeter 326959876
Area 6681422532120961
Diagonal 115597772.74776

Cube

Length = n
Surface area 40088535192725766
Volume 5.4613927065147E+23
Space diagonal 141577779.3171

Equilateral Triangle

Length = n
Perimeter 245219907
Area 2.8931408231173E+15
Altitude 70788889.658552

Triangular Pyramid

Length = n
Surface area 2.8931408231173E+15
Volume 6.4363130291655E+22
Height 38532590.915919