81998938, eighty-one million nine hundred ninety-eight thousand nine hundred thirty-eight: Prime Factorization, Divisors, Base conversion, Basic calculations, Geometric Shapes

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

Interesting facts

81998938 has 8 divisors, whose sum is 140569632
The reverse of 81998938 is 83989918
Previous prime number is 7

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 55
Digital Root 1

Name

Name	eighty-one million nine hundred ninety-eight thousand nine hundred thirty-eight

Notation

Scientific notation	8.1998938 × 10^7
Engineering notation	8.1998938 × 10^6

Prime Factorization of 81998938

Prime Factorization 2 × 7 × 5857067

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	81998938	Product of the distinct prime numbers

The prime factorization of 81998938 is 2 × 7 × 5857067. Since it has a total of 3 prime factors.

Most popular turbo-numbers

5, 1, 15, 82, 261, 209, 1291, 9415, 33629, 70446, 162882, 104932, 3461848, 4914122, 92789320, 34762471, 319018472, 507885138, 7646184435, 9039249252

Basic calculations (n = 81998938)

Multiplication

n×y

n×2	163997876
n×3	245996814
n×4	327995752
n×5	409994690

Division

n÷y

n÷2	40999469
n÷3	27332979.333333
n÷3	20499734.5
n÷5	16399787.6

Exponentiation

n^y

n²	6723825833127844
n³	5.5134657761345E+23
n⁴	4.5209833834237E+31
n⁵	3.7071583615639E+39

Nth Root

^y√n

²√n	9055.3264988072
³√n	434.44627302432
⁴√n	95.159479290332
⁵√n	38.261469471351

Divisors of 81998938

1, 2, 7, 14, 5857067, 11714134, 40999469, 81998938

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	-81998937	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 81998938 can be divided by 8 positive divisors. The sum of these divisors (counting 81998938) is 1, the average is 0.125.

Base conversion 81998938

Base	System	Value
2	Binary	100111000110011010001011010
3	Ternary	12201021222101201
4	Quaternary	10320303101122
5	Quinary	131442431223
6	Senary	12045304414
8	Octal	470632132
10	Decimal	81998938
12	Duodecimal	2356510a
16	Hexadecimal	4e3345a
20	Vigesimal	15c9h6i
36	Base36	1ctisa

Cryptographic Hash Functions

md5	b6e8ccfa8fe77bb5684f0b65d114989e
sha1	1d7cb0cd05ca981a4d993f6735ec548e810a6e1a
sha256	3facfc93d05d444c6d5cad41b7d556bd45ee340993d143d60106a44a49fd4b05
sha512	f39ee303f9510c7554837595196d5297eeef86b07ad346db50553d8638f2173f25b39012de4fddfdfe46f739fd9b58d35c531e8b1ee4def83f333835c46b56e7
ripemd-160	3122d7c8599793e32bb485bf05144d3133993431

81998938 as geometric shapes

Circle

Radius = n

Diameter	163997876
Circumference	515214522.44593
Area	2.1123521841372E+16

Sphere

Radius = n

Volume	2.3094751437497E+24
Surface area	8.4494087365487E+16
Circumference	515214522.44593

Square

Length = n

Perimeter	327995752
Area	6723825833127844
Diagonal	115964010.21979

Cube

Length = n

Surface area	40342954998767064
Volume	5.5134657761345E+23
Space diagonal	142026326.78269

Equilateral Triangle

Length = n

Perimeter	245996814
Area	2.9115019910554E+15
Altitude	71013163.391345

Triangular Pyramid

Length = n

Surface area	2.9115019910554E+15
Volume	6.4976817302411E+22
Height	38654670.073264