Max	9223372036854775807
25835	Positive integer
0b10001100	Binary number
01771452	Octal number
0x129abf	Hex number
5.012 * 10^7	Scientific notation
2^4 * 5	Factorized form
*	Random number

81009969 (number)

81009969 is an odd 8-digits composite number following 81009968 and preceding 81009970. In scientific notation, it is written as 8.1009969 × 10^7. The sum of its digits is 42. It has a total of 2 prime factors and 4 positive divisors. There are 54006644 positive integers (up to 81009969) that are relatively prime to 81009969.

Interesting facts

81009969 has 4 divisors, whose sum is 108013296
The reverse of 81009969 is 96990018
Previous prime number is 3

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6

Name

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

Notation

Scientific notation	8.1009969 × 10^7
Engineering notation	8.1009969 × 10^6

Prime Factorization of 81009969

Prime Factorization 3 × 27003323

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81009969	Product of the distinct prime numbers

The prime factorization of 81009969 is 3 × 27003323. Since it has a total of 2 prime factors.

Most popular turbo-numbers

3, 7, 3, 28, 979, 745, 7931, 1327, 31824, 15708, 155464, 964593, 7644832, 6974465, 12562962, 28423955, 157208657, 526403072, 2245830147, 5141957998

Basic calculations (n = 81009969)

Multiplication

n×y

n×2	162019938
n×3	243029907
n×4	324039876
n×5	405049845

Division

n÷y

n÷2	40504984.5
n÷3	27003323
n÷3	20252492.25
n÷5	16201993.8

Exponentiation

n^y

n²	6562615077380961
n³	5.3163724397756E+23
n⁴	4.3067916653868E+31
n⁵	3.4889305930244E+39

Nth Root

^y√n

²√n	9000.5538162938
³√n	432.69262071711
⁴√n	94.871248628305
⁵√n	38.168728542995

Divisors of 81009969

1, 3, 27003323, 81009969

4 divisors

τ	Total Divisors	4	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-81009968	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.25	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	4	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81009969 can be divided by 4 positive divisors. The sum of these divisors (counting 81009969) is 1, the average is 0.25.

Base conversion 81009969

Base	System	Value
2	Binary	100110101000001110100110001
3	Ternary	12122102201210020
4	Quaternary	10311001310301
5	Quinary	131214304334
6	Senary	12012154053
8	Octal	465016461
10	Decimal	81009969
12	Duodecimal	23168929
16	Hexadecimal	4d41d31
20	Vigesimal	15664i9
36	Base36	1c8box

Cryptographic Hash Functions

md5	439d5251ea6a8e1d10e80ba0d9c9b45e
sha1	73b8376c303953c0f720a05e361f450b1f9664e4
sha256	29d1ec45d50c1367c7d5e9050c99e74a3bdde83d6b5732244eab5b3f71fccdf6
sha512	795e594eded5b7203b5f7c93c604a1787fec135a8fd1636b0e9eb7203bb4325080e51d748a949f9a122c98c671ce719bd2f5cda298367e99efd5b52fa174b238
ripemd-160	c84285bd94cb15acad1c69c095f2afa2fcb45372

81009969 as geometric shapes

Circle

Radius = n

Diameter	162019938
Circumference	509000646.95587
Area	2.0617063315438E+16

Sphere

Radius = n

Volume	2.2269168800729E+24
Surface area	8.2468253261751E+16
Circumference	509000646.95587

Square

Length = n

Perimeter	324039876
Area	6562615077380961
Diagonal	114565396.84722

Cube

Length = n

Surface area	39375690464285766
Volume	5.3163724397756E+23
Space diagonal	140313382.22758

Equilateral Triangle

Length = n

Perimeter	243029907
Area	2.8416956861353E+15
Altitude	70156691.11379

Triangular Pyramid

Length = n

Surface area	2.8416956861353E+15
Volume	6.2654050057977E+22
Height	38188465.615741