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

128981 (number)

128981 is an odd 6-digits prime number following 128980 and preceding 128982. In scientific notation, it is written as 1.28981 × 10^5. The sum of its digits is 29. It has a total of 1 prime factors and 2 positive divisors. There are 128980 positive integers (up to 128981) that are relatively prime to 128981.

Interesting facts

128981 has 2 divisors, whose sum is 128982
The reverse of 128981 is 189821
Previous prime number is 1

Basic properties

Is Prime? yes
Number parity odd
Number length 6
Sum of Digits 29
Digital Root 2

Name

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

Notation

Scientific notation	1.28981 × 10^5
Engineering notation	1.28981 × 10^3

Prime Factorization of 128981

Prime Factorization 128981

Composite number

ω	Distinct Factors	1	Total number of distinct prime factors
Ω	Total Factors	1	Total number of prime factors
rad	Radical	128981	Product of the distinct prime numbers

The prime factorization of 128981 is 128981. Since it has a total of 1 prime factors.

Most popular turbo-numbers

1, 8, 80, 34, 365, 58, 7450, 1874, 34966, 71524, 329802, 293327, 8070338, 5043780, 98894748, 77593548, 312435977, 671380207, 4445167873, 6425001148

Basic calculations (n = 128981)

Multiplication

n×y

n×2	257962
n×3	386943
n×4	515924
n×5	644905

Division

n÷y

n÷2	64490.5
n÷3	42993.666666667
n÷3	32245.25
n÷5	25796.2

Exponentiation

n^y

n²	16636098361
n³	2145740602700141
n⁴	2.7675976867687E+20
n⁵	3.5696751723711E+25

Nth Root

^y√n

²√n	359.13924876014
³√n	50.525262660037
⁴√n	18.950969599473
⁵√n	10.522165973509

Divisors of 128981

1, 128981

2 divisors

τ	Total Divisors	2	Total number of the positive divisors of n
σ	Sum of Divisors	128982	Sum of all the positive divisors of n
s	Aliquot Sum	1	Sum of the proper positive divisors of n
A	Arithmetic Mean	64491	Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G	Geometric Mean	359.14064097509	Returns the nth root of the product of n divisors
H	Harmonic Mean	1.9999844939604	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 128981 can be divided by 2 positive divisors. The sum of these divisors (counting 128981) is 128982, the average is 64491.

Base conversion 128981

Base	System	Value
2	Binary	11111011111010101
3	Ternary	20112221002
4	Quaternary	133133111
5	Quinary	13111411
6	Senary	2433045
8	Octal	373725
10	Decimal	128981
12	Duodecimal	62785
16	Hexadecimal	1f7d5
20	Vigesimal	g291
36	Base36	2rit

Cryptographic Hash Functions

md5	6753a3896499173adedb31d005891955
sha1	4863bb9c1e49d97b69107e6862e3c688954f5361
sha256	426e97cf7403a5f624bcf47826bfb2b96cd1e1612d5381506ac0f73d5263f98e
sha512	c0821bd6b155e7a3b5ec4409c7fe9b82dc73756765c0b7149bf7d2b75fc02700440064e77d76dfefbf4de3b1f5c663b8355486b8ea66d39b23a0a9c97e20816e
ripemd-160	e4c12591a4952b3e4f606b7ab42b2c40ee8f372b

128981 as geometric shapes

Circle

Radius = n

Diameter	257962
Circumference	810411.52410533
Area	52263844395.315

Sphere

Radius = n

Volume	8.9880572186028E+15
Surface area	209055377581.26
Circumference	810411.52410533

Square

Length = n

Perimeter	515924
Area	16636098361
Diagonal	182406.67948844

Cube

Length = n

Surface area	99816590166
Volume	2145740602700141
Space diagonal	223401.64521104

Equilateral Triangle

Length = n

Perimeter	386943
Area	7203641900.2413
Altitude	111700.82260552

Triangular Pyramid

Length = n

Surface area	7203641900.2413
Volume	2.5287795513943E+14
Height	60802.226496148