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

81121617 (number)

81121617 is an odd 8-digits composite number following 81121616 and preceding 81121618. In scientific notation, it is written as 8.1121617 × 10^7. The sum of its digits is 27. It has a total of 2 prime factors and 4 positive divisors. There are 54081072 positive integers (up to 81121617) that are relatively prime to 81121617.

Interesting facts

81121617 has 4 divisors, whose sum is 90135140
The reverse of 81121617 is 71612118
Previous prime number is 9

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9

Name

Name	eighty-one million one hundred twenty-one thousand six hundred seventeen

Notation

Scientific notation	8.1121617 × 10^7
Engineering notation	8.1121617 × 10^6

Prime Factorization of 81121617

Prime Factorization 9 × 9013513

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81121617	Product of the distinct prime numbers

The prime factorization of 81121617 is 9 × 9013513. Since it has a total of 2 prime factors.

Most popular turbo-numbers

4, 1, 9, 91, 798, 89, 202, 4073, 42384, 60542, 648577, 911263, 9532595, 9078948, 62821510, 72681510, 463936201, 47497297, 3512856745, 560453048

Basic calculations (n = 81121617)

Multiplication

n×y

n×2	162243234
n×3	243364851
n×4	324486468
n×5	405608085

Division

n÷y

n÷2	40560808.5
n÷3	27040539
n÷3	20280404.25
n÷5	16224323.4

Exponentiation

n^y

n²	6580716744694689
n³	5.3383838334861E+23
n⁴	4.3305832873905E+31
n⁵	3.5130391882629E+39

Nth Root

^y√n

²√n	9006.7539657748
³√n	432.89130856587
⁴√n	94.903919654432
⁵√n	38.179243581915

Divisors of 81121617

1, 9, 9013513, 81121617

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	-81121616	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 81121617 can be divided by 4 positive divisors. The sum of these divisors (counting 81121617) is 1, the average is 0.25.

Base conversion 81121617

Base	System	Value
2	Binary	100110101011101000101010001
3	Ternary	12122122101221100
4	Quaternary	10311131011101
5	Quinary	131231342432
6	Senary	12014415013
8	Octal	465350521
10	Decimal	81121617
12	Duodecimal	23201469
16	Hexadecimal	4d5d151
20	Vigesimal	157040h
36	Base36	1capu9

Cryptographic Hash Functions

md5	84cc34530c42ee4f5bcfadf85172ea72
sha1	ff541bafe8198c8408db37e0009deaf3a74a4099
sha256	58bb89818cba1b2f4286ded1cc14e819e2494d37f588219d14d31f11d48b22d5
sha512	1f7d558bbb6f0c226b845052a47ff4843519e5ac072563b3b1074578afb01161151c8cf3e9c0c536eb1d7bcbe267ba32546d18963704ab28305392850a61abfc
ripemd-160	19ae9346bfa627f5fdd3dcaa82a7e1f2c7dd73d2

81121617 as geometric shapes

Circle

Radius = n

Diameter	162243234
Circumference	509702152.02905
Area	2.0673931380488E+16

Sphere

Radius = n

Volume	2.2361369911097E+24
Surface area	8.2695725521953E+16
Circumference	509702152.02905

Square

Length = n

Perimeter	324486468
Area	6580716744694689
Diagonal	114723290.96304

Cube

Length = n

Surface area	39484300468168134
Volume	5.3383838334861E+23
Space diagonal	140506762.23614

Equilateral Triangle

Length = n

Perimeter	243364851
Area	2.8495339380076E+15
Altitude	70253381.118072

Triangular Pyramid

Length = n

Surface area	2.8495339380076E+15
Volume	6.2913456820578E+22
Height	38241096.987679