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

81609087 (number)

81609087 is an odd 8-digits composite number following 81609086 and preceding 81609088. In scientific notation, it is written as 8.1609087 × 10^7. The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors. There are 45372960 positive integers (up to 81609087) that are relatively prime to 81609087.

Interesting facts

81609087 has 16 divisors, whose sum is 127718912
The reverse of 81609087 is 78090618
Previous prime number is 37

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3

Name

Name	eighty-one million six hundred nine thousand eighty-seven

Notation

Scientific notation	8.1609087 × 10^7
Engineering notation	8.1609087 × 10^6

Prime Factorization of 81609087

Prime Factorization 3 × 7 × 37 × 105031

Composite number

ω	Distinct Factors	4	Total number of distinct prime factors
Ω	Total Factors	4	Total number of prime factors
rad	Radical	81609087	Product of the distinct prime numbers

The prime factorization of 81609087 is 3 × 7 × 37 × 105031. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 3, 74, 33, 450, 808, 5500, 5245, 78330, 80531, 826355, 571204, 6479609, 2300808, 53435293, 50260312, 170806055, 58807403, 9969893479, 5466789217

Basic calculations (n = 81609087)

Multiplication

n×y

n×2	163218174
n×3	244827261
n×4	326436348
n×5	408045435

Division

n÷y

n÷2	40804543.5
n÷3	27203029
n÷3	20402271.75
n÷5	16321817.4

Exponentiation

n^y

n²	6660043080973569
n³	5.4352003521892E+23
n⁴	4.4356173840424E+31
n⁵	3.6198668499303E+39

Nth Root

^y√n

²√n	9033.774792411
³√n	433.75667694517
⁴√n	95.04617189772
⁵√n	38.225018462318

Divisors of 81609087

1, 3, 7, 21, 37, 111, 259, 777, 105031, 315093, 735217, 2205651, 3886147, 11658441, 27203029, 81609087

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	-81609086	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 81609087 can be divided by 16 positive divisors. The sum of these divisors (counting 81609087) is 1, the average is 0.0625.

Base conversion 81609087

Base	System	Value
2	Binary	100110111010100000101111111
3	Ternary	12200120011121210
4	Quaternary	10313110011333
5	Quinary	131342442322
6	Senary	12033055503
8	Octal	467240577
10	Decimal	81609087
12	Duodecimal	233b7593
16	Hexadecimal	4dd417f
20	Vigesimal	15a12e7
36	Base36	1cl5z3

Cryptographic Hash Functions

md5	e1a371a316d36353a05af82f94d3555c
sha1	1d56dd031a958b2affbdb6adb05f6d29e1442ccf
sha256	2982f01b62d3446bb6650fba330e0884ecb82e8a6aec7d759876e5effc448032
sha512	7cb89ff452113faf6f61de33c49e3a1b19bad15a6914ee8c537290351545c2e30cc7afd2a7fbbaea7df5092a074505c29185e4369596e1a2db31e3c3374db91d
ripemd-160	9cd58cd8a0796f7a648e6dd466392090022b1fdc

81609087 as geometric shapes

Circle

Radius = n

Diameter	163218174
Circumference	512765016.37074
Area	2.0923142415778E+16

Sphere

Radius = n

Volume	2.2766913996302E+24
Surface area	8.3692569663112E+16
Circumference	512765016.37074

Square

Length = n

Perimeter	326436348
Area	6660043080973569
Diagonal	115412677.64829

Cube

Length = n

Surface area	39960258485841414
Volume	5.4352003521892E+23
Space diagonal	141351085.04331

Equilateral Triangle

Length = n

Perimeter	244827261
Area	2.8838832492109E+15
Altitude	70675542.521654

Triangular Pyramid

Length = n

Surface area	2.8838832492109E+15
Volume	6.4054450435675E+22
Height	38470892.549429