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

128961 (number)

128961 is an odd 6-digits composite number following 128960 and preceding 128962. In scientific notation, it is written as 1.28961 × 10^5. The sum of its digits is 27. It has a total of 3 prime factors and 8 positive divisors. There are 69696 positive integers (up to 128961) that are relatively prime to 128961.

Interesting facts

128961 has 8 divisors, whose sum is 138240
The reverse of 128961 is 169821
Previous prime number is 23

Basic properties

Is Prime? no
Number parity odd
Number length 6
Sum of Digits 27
Digital Root 9

Name

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

Notation

Scientific notation	1.28961 × 10^5
Engineering notation	1.28961 × 10^3

Prime Factorization of 128961

Prime Factorization 63 × 23 × 89

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	128961	Product of the distinct prime numbers

The prime factorization of 128961 is 63 × 23 × 89. Since it has a total of 3 prime factors.

Most popular turbo-numbers

6, 7, 89, 54, 287, 615, 393, 4109, 84158, 63146, 46487, 709002, 3588129, 5623905, 5208427, 99821137, 578417030, 730318101, 7212368616, 5319468172

Basic calculations (n = 128961)

Multiplication

n×y

n×2	257922
n×3	386883
n×4	515844
n×5	644805

Division

n÷y

n÷2	64480.5
n÷3	42987
n÷3	32240.25
n÷5	25792.2

Exponentiation

n^y

n²	16630939521
n³	2144742591567681
n⁴	2.7658814935116E+20
n⁵	3.5669084328475E+25

Nth Root

^y√n

²√n	359.11140332771
³√n	50.522651015717
⁴√n	18.950234914842
⁵√n	10.521839636493

Divisors of 128961

1, 23, 63, 89, 1449, 2047, 5607, 128961

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	-128960	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 128961 can be divided by 8 positive divisors. The sum of these divisors (counting 128961) is 1, the average is 0.125.

Base conversion 128961

Base	System	Value
2	Binary	11111011111000001
3	Ternary	20112220100
4	Quaternary	133133001
5	Quinary	13111321
6	Senary	2433013
8	Octal	373701
10	Decimal	128961
12	Duodecimal	62769
16	Hexadecimal	1f7c1
20	Vigesimal	g281
36	Base36	2ri9

Cryptographic Hash Functions

md5	8440c1fa22fe2bba1bc1cfe6f5b82838
sha1	0ca64384c7fa922398c820ba5eafaf6335a0c14b
sha256	62e73a77b0e5145fb2175e4a407144f6fa0a5c4de07f9b00468834f79ca2c0b3
sha512	021acd04c5658861d1dafd49c9763edabbb3aa8a92e97d5da467a708058eb601b0bcdece4ed1b80344539b7751644d111afb54c6972c0a7aea20cdd9dfdf22e5
ripemd-160	cf9bf4cdc5192dc8994a4f14c10c12e0241347e1

128961 as geometric shapes

Circle

Radius = n

Diameter	257922
Circumference	810285.86039919
Area	52247637421.47

Sphere

Radius = n

Volume	8.9838767593469E+15
Surface area	208990549685.88
Circumference	810285.86039919

Square

Length = n

Perimeter	515844
Area	16630939521
Diagonal	182378.3952172

Cube

Length = n

Surface area	99785637126
Volume	2144742591567681
Space diagonal	223367.00419489

Equilateral Triangle

Length = n

Perimeter	386883
Area	7201408056.9943
Altitude	111683.50209744

Triangular Pyramid

Length = n

Surface area	7201408056.9943
Volume	2.5276033839952E+14
Height	60792.798405732