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

138981 (number)

138981 is an odd 6-digits composite number following 138980 and preceding 138982. In scientific notation, it is written as 1.38981 × 10^5. The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors. There are 92652 positive integers (up to 138981) that are relatively prime to 138981.

Interesting facts

138981 has 4 divisors, whose sum is 185312
The reverse of 138981 is 189831
Previous prime number is 3

Basic properties

Is Prime? no
Number parity odd
Number length 6
Sum of Digits 30
Digital Root 3

Name

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

Notation

Scientific notation	1.38981 × 10^5
Engineering notation	1.38981 × 10^3

Prime Factorization of 138981

Prime Factorization 3 × 46327

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	138981	Product of the distinct prime numbers

The prime factorization of 138981 is 3 × 46327. Since it has a total of 2 prime factors.

Most popular turbo-numbers

4, 6, 59, 50, 571, 896, 1609, 267, 65566, 21857, 5616, 27487, 1069204, 417228, 4102974, 48215099, 777368783, 493630778, 8906461437, 7473400640

Basic calculations (n = 138981)

Multiplication

n×y

n×2	277962
n×3	416943
n×4	555924
n×5	694905

Division

n÷y

n÷2	69490.5
n÷3	46327
n÷3	34745.25
n÷5	27796.2

Exponentiation

n^y

n²	19315718361
n³	2684517853530141
n⁴	3.7309697580147E+20
n⁵	5.1853390793864E+25

Nth Root

^y√n

²√n	372.80155579075
³√n	51.798654328175
⁴√n	19.308069706492
⁵√n	10.680487754909

Divisors of 138981

1, 3, 46327, 138981

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	-138980	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 138981 can be divided by 4 positive divisors. The sum of these divisors (counting 138981) is 1, the average is 0.25.

Base conversion 138981

Base	System	Value
2	Binary	100001111011100101
3	Ternary	21001122110
4	Quaternary	201323211
5	Quinary	13421411
6	Senary	2551233
8	Octal	417345
10	Decimal	138981
12	Duodecimal	68519
16	Hexadecimal	21ee5
20	Vigesimal	h791
36	Base36	2z8l

Cryptographic Hash Functions

md5	ae10c627b8a54de89a567a0acf5333f8
sha1	b0991b98067b3c766a67a056b29bd5b6f887cdeb
sha256	bc0006e4a16fd9a8cedd53690021fa82cf65c6ab472a3dfa7e9ca4a4236e06be
sha512	7061c955a2236df5d0ddcb6cb8829ccd00f4a12b0b62568d767be7eb05116553cbb826ee37bd5ad86bca280a41923893018e074be489e31b22882dc7d505d6ee
ripemd-160	437c0fa68d1222a5ee73ef21e3cedcc0eec31196

138981 as geometric shapes

Circle

Radius = n

Diameter	277962
Circumference	873243.37717713
Area	60682118901.727

Sphere

Radius = n

Volume	1.1244882089441E+16
Surface area	242728475606.91
Circumference	873243.37717713

Square

Length = n

Perimeter	555924
Area	19315718361
Diagonal	196548.81511218

Cube

Length = n

Surface area	115894310166
Volume	2684517853530141
Space diagonal	240722.15328673

Equilateral Triangle

Length = n

Perimeter	416943
Area	8363951396.4858
Altitude	120361.07664337

Triangular Pyramid

Length = n

Surface area	8363951396.4858
Volume	3.1637346307459E+14
Height	65516.271704058