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

81609521 (number)

81609521 is an odd 8-digits composite number following 81609520 and preceding 81609522. In scientific notation, it is written as 8.1609521 × 10^7. The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors. There are 68803920 positive integers (up to 81609521) that are relatively prime to 81609521.

Interesting facts

81609521 has 8 divisors, whose sum is 94797504
The reverse of 81609521 is 12590618
Previous prime number is 61

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5

Name

Name	eighty-one million six hundred nine thousand five hundred twenty-one

Notation

Scientific notation	8.1609521 × 10^7
Engineering notation	8.1609521 × 10^6

Prime Factorization of 81609521

Prime Factorization 7 × 61 × 191123

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81609521	Product of the distinct prime numbers

The prime factorization of 81609521 is 7 × 61 × 191123. Since it has a total of 3 prime factors.

Most popular turbo-numbers

5, 1, 40, 57, 214, 357, 9792, 2328, 90140, 35270, 615178, 978703, 796385, 7561754, 67362324, 29417612, 320773146, 829741984, 3653305292, 6743004757

Basic calculations (n = 81609521)

Multiplication

n×y

n×2	163219042
n×3	244828563
n×4	326438084
n×5	408047605

Division

n÷y

n÷2	40804760.5
n÷3	27203173.666667
n÷3	20402380.25
n÷5	16321904.2

Exponentiation

n^y

n²	6660113917849441
n³	5.4352870664113E+23
n⁴	4.4357117398732E+31
n⁵	3.6199631038513E+39

Nth Root

^y√n

²√n	9033.7988133454
³√n	433.7574458549
⁴√n	95.046298262191
⁵√n	38.225059118631

Divisors of 81609521

1, 7, 61, 427, 191123, 1337861, 11658503, 81609521

8 divisors

τ	Total Divisors	8	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-81609520	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.125	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	8	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 81609521 can be divided by 8 positive divisors. The sum of these divisors (counting 81609521) is 1, the average is 0.125.

Base conversion 81609521

Base	System	Value
2	Binary	100110111010100001100110001
3	Ternary	12200120012012212
4	Quaternary	10313110030301
5	Quinary	131343001041
6	Senary	12033101505
8	Octal	467241461
10	Decimal	81609521
12	Duodecimal	233b7895
16	Hexadecimal	4dd4331
20	Vigesimal	15a13g1
36	Base36	1cl6b5

Cryptographic Hash Functions

md5	c1d81ef87f837490188e33e1b200da21
sha1	6b897ffee44a54b686ad47e06f45e2bc4ae978e0
sha256	2e5b5ee0f60670345ebe6da888783b30ba5f292b555ac5001968bc81a8718744
sha512	b03d3b27f63437020d5dad2b0aa2fd4656de3d30c5bb89138a3372814d21013a6e87919f853de9c755d6064b7770c9123e1f87dcaf449f7bb9dd8d493c7b7892
ripemd-160	65108b547bb154ddeed21d08bed59aca264b078f

81609521 as geometric shapes

Circle

Radius = n

Diameter	163219042
Circumference	512767743.27316
Area	2.0923364956387E+16

Sphere

Radius = n

Volume	2.2767277223986E+24
Surface area	8.3693459825548E+16
Circumference	512767743.27316

Square

Length = n

Perimeter	326438084
Area	6660113917849441
Diagonal	115413291.41697

Cube

Length = n

Surface area	39960683507096646
Volume	5.4352870664113E+23
Space diagonal	141351836.75336

Equilateral Triangle

Length = n

Perimeter	244828563
Area	2.883913922478E+15
Altitude	70675918.37668

Triangular Pyramid

Length = n

Surface area	2.883913922478E+15
Volume	6.4055472372582E+22
Height	38471097.138991