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

81121641 (number)

81121641 is an odd 8-digits composite number following 81121640 and preceding 81121642. In scientific notation, it is written as 8.1121641 × 10^7. The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors. There are 53060592 positive integers (up to 81121641) that are relatively prime to 81121641.

Interesting facts

81121641 has 8 divisors, whose sum is 110203200
The reverse of 81121641 is 14612118
Previous prime number is 53

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 24
Digital Root 6

Name

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

Notation

Scientific notation	8.1121641 × 10^7
Engineering notation	8.1121641 × 10^6

Prime Factorization of 81121641

Prime Factorization 3 × 53 × 510199

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81121641	Product of the distinct prime numbers

The prime factorization of 81121641 is 3 × 53 × 510199. Since it has a total of 3 prime factors.

Most popular turbo-numbers

6, 9, 37, 89, 618, 893, 5520, 1325, 70355, 89670, 893214, 948491, 5158168, 8685156, 1861559, 57775705, 719266346, 959960651, 9633998557, 6348392018

Basic calculations (n = 81121641)

Multiplication

n×y

n×2	162243282
n×3	243364923
n×4	324486564
n×5	405608205

Division

n÷y

n÷2	40560820.5
n÷3	27040547
n÷3	20280410.25
n÷5	16224328.2

Exponentiation

n^y

n²	6580720638532881
n³	5.3383885716036E+23
n⁴	4.3305884122413E+31
n⁵	3.513044384966E+39

Nth Root

^y√n

²√n	9006.7552981082
³√n	432.89135125647
⁴√n	94.903926673812
⁵√n	38.179245840997

Divisors of 81121641

1, 3, 53, 159, 510199, 1530597, 27040547, 81121641

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	-81121640	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 81121641 can be divided by 8 positive divisors. The sum of these divisors (counting 81121641) is 1, the average is 0.125.

Base conversion 81121641

Base	System	Value
2	Binary	100110101011101000101101001
3	Ternary	12122122101222020
4	Quaternary	10311131011221
5	Quinary	131231343031
6	Senary	12014415053
8	Octal	465350551
10	Decimal	81121641
12	Duodecimal	23201489
16	Hexadecimal	4d5d169
20	Vigesimal	1570421
36	Base36	1capux

Cryptographic Hash Functions

md5	21864c4a710823aeb90d63d92353e68a
sha1	e43533514ec1e34a557af73bf5eecc74d398a399
sha256	189cb7092108e13bb47b93d7dd6532dda893bee5cdd539cc8a04953df795d5b5
sha512	14338b740dcc6aa5001b1b7d5f3a8195ed0c9c2de33516de944c6daf0258a2757814b7db5d0652c94801dee3e03cc4819a82336c00a44ebc2ff392f0ac766a60
ripemd-160	43c3b4077c519e599b1eeb8db50632c8243233ce

81121641 as geometric shapes

Circle

Radius = n

Diameter	162243282
Circumference	509702302.8255
Area	2.0673943613342E+16

Sphere

Radius = n

Volume	2.2361389758077E+24
Surface area	8.2695774453367E+16
Circumference	509702302.8255

Square

Length = n

Perimeter	324486564
Area	6580720638532881
Diagonal	114723324.90416

Cube

Length = n

Surface area	39484323831197286
Volume	5.3383885716036E+23
Space diagonal	140506803.80536

Equilateral Triangle

Length = n

Perimeter	243364923
Area	2.849535624089E+15
Altitude	70253401.902681

Triangular Pyramid

Length = n

Surface area	2.849535624089E+15
Volume	6.2913512659827E+22
Height	38241108.301387