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

81042661 (number)

81042661 is an odd 8-digits composite number following 81042660 and preceding 81042662. In scientific notation, it is written as 8.1042661 × 10^7. The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors. There are 69199440 positive integers (up to 81042661) that are relatively prime to 81042661.

Interesting facts

81042661 has 4 divisors, whose sum is 81088524
The reverse of 81042661 is 16624018
Previous prime number is 1841

Basic properties

Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1

Name

Name	eighty-one million forty-two thousand six hundred sixty-one

Notation

Scientific notation	8.1042661 × 10^7
Engineering notation	8.1042661 × 10^6

Prime Factorization of 81042661

Prime Factorization 1841 × 44021

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81042661	Product of the distinct prime numbers

The prime factorization of 81042661 is 1841 × 44021. Since it has a total of 2 prime factors.

Most popular turbo-numbers

4, 4, 74, 46, 661, 795, 1336, 4613, 72540, 94210, 935002, 928266, 7198280, 1374941, 48298038, 13874379, 133816013, 580674036, 969675946, 7499514179

Basic calculations (n = 81042661)

Multiplication

n×y

n×2	162085322
n×3	243127983
n×4	324170644
n×5	405213305

Division

n÷y

n÷2	40521330.5
n÷3	27014220.333333
n÷3	20260665.25
n÷5	16208532.2

Exponentiation

n^y

n²	6567912901960921
n³	5.3228113879115E+23
n⁴	4.3137479887745E+31
n⁵	3.4959761589368E+39

Nth Root

^y√n

²√n	9002.3697435731
³√n	432.75081801849
⁴√n	94.880818628283
⁵√n	38.171808684151

Divisors of 81042661

1, 1841, 44021, 81042661

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	-81042660	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 81042661 can be divided by 4 positive divisors. The sum of these divisors (counting 81042661) is 1, the average is 0.25.

Base conversion 81042661

Base	System	Value
2	Binary	100110101001001110011100101
3	Ternary	12122111101122001
4	Quaternary	10311021303211
5	Quinary	131221331121
6	Senary	12013005301
8	Octal	465116345
10	Decimal	81042661
12	Duodecimal	23183831
16	Hexadecimal	4d49ce5
20	Vigesimal	156a6d1
36	Base36	1c90x1

Cryptographic Hash Functions

md5	55839090eccb550797d1e4841ec216de
sha1	c93931b86c15171a12b997aa659b4929849af7e4
sha256	e42668a34400a29e15554fd15182d705d1fce9a3a91c3af1eff0a3688ca0f4cc
sha512	5202978f417b18cee3c22a44a99df8521dc809934ad9f8b0309c173f6d3922abe6598a7f00ce42a03ce6548358bc4bc4a7dccbef75bb2e48cec52ecaff9c2a6e
ripemd-160	6a648c1b9f9202c65e2f48ee6201b19e1b6a9d6e

81042661 as geometric shapes

Circle

Radius = n

Diameter	162085322
Circumference	509206056.84994
Area	2.0633706922218E+16

Sphere

Radius = n

Volume	2.2296140203609E+24
Surface area	8.2534827688872E+16
Circumference	509206056.84994

Square

Length = n

Perimeter	324170644
Area	6567912901960921
Diagonal	114611630.31701

Cube

Length = n

Surface area	39407477411765526
Volume	5.3228113879115E+23
Space diagonal	140370006.43258

Equilateral Triangle

Length = n

Perimeter	243127983
Area	2.8439897114709E+15
Altitude	70185003.21629

Triangular Pyramid

Length = n

Surface area	2.8439897114709E+15
Volume	6.2729933789486E+22
Height	38203876.772335