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

81998914 (number)

81998914 is an even 8-digits composite number following 81998913 and preceding 81998915. In scientific notation, it is written as 8.1998914 × 10^7. The sum of its digits is 49. It has a total of 2 prime factors and 4 positive divisors. There are 40999456 positive integers (up to 81998914) that are relatively prime to 81998914.

Interesting facts

81998914 has 4 divisors, whose sum is 122998374
The reverse of 81998914 is 41989918
Previous prime number is 2

Basic properties

Is Prime? no
Number parity even
Number length 8
Sum of Digits 49
Digital Root 4

Name

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

Notation

Scientific notation	8.1998914 × 10^7
Engineering notation	8.1998914 × 10^6

Prime Factorization of 81998914

Prime Factorization 2 × 40999457

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	81998914	Product of the distinct prime numbers

The prime factorization of 81998914 is 2 × 40999457. Since it has a total of 2 prime factors.

Most popular turbo-numbers

9, 8, 36, 71, 884, 264, 2468, 285, 4679, 69630, 333673, 81144, 2133806, 6437701, 71125220, 35691136, 263481497, 451116300, 4012113563, 6542388645

Basic calculations (n = 81998914)

Multiplication

n×y

n×2	163997828
n×3	245996742
n×4	327995656
n×5	409994570

Division

n÷y

n÷2	40999457
n÷3	27332971.333333
n÷3	20499728.5
n÷5	16399782.8

Exponentiation

n^y

n²	6723821897179396
n³	5.5134609349813E+23
n⁴	4.5209780904989E+31
n⁵	3.707152936387E+39

Nth Root

^y√n

²√n	9055.3251736202
³√n	434.44623063876
⁴√n	95.159472327353
⁵√n	38.261467231626

Divisors of 81998914

1, 2, 40999457, 81998914

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	-81998913	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 81998914 can be divided by 4 positive divisors. The sum of these divisors (counting 81998914) is 1, the average is 0.25.

Base conversion 81998914

Base	System	Value
2	Binary	100111000110011010001000010
3	Ternary	12201021222100211
4	Quaternary	10320303101002
5	Quinary	131442431124
6	Senary	12045304334
8	Octal	470632102
10	Decimal	81998914
12	Duodecimal	235650aa
16	Hexadecimal	4e33442
20	Vigesimal	15c9h5e
36	Base36	1ctirm

Cryptographic Hash Functions

md5	92cdae0d40b882276702da290f40ea8d
sha1	2c2e1271523002fbdb566d78b39deca33c1e17eb
sha256	641ea71901a47a4607a0ea5016b687870ef52cb6f7bdbcd875b78d50a406181d
sha512	e0647dbede7af5dc4d672fc1782fc1c31ed12b29005431bfe78980799ab5da88197589ec80a3a5ee486d3763badbd9d3839903d5be7ac524e1c55fa23437a0fd
ripemd-160	542879fef068e8634cb89b6e06ad4ea445482d8b

81998914 as geometric shapes

Circle

Radius = n

Diameter	163997828
Circumference	515214371.64948
Area	2.1123509476225E+16

Sphere

Radius = n

Volume	2.3094731158922E+24
Surface area	8.44940379049E+16
Circumference	515214371.64948

Square

Length = n

Perimeter	327995656
Area	6723821897179396
Diagonal	115963976.27867

Cube

Length = n

Surface area	40342931383076376
Volume	5.5134609349813E+23
Space diagonal	142026285.21347

Equilateral Triangle

Length = n

Perimeter	245996742
Area	2.9115002867397E+15
Altitude	71013142.606735

Triangular Pyramid

Length = n

Surface area	2.9115002867397E+15
Volume	6.4976760248873E+22
Height	38654658.759555