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

128897 (number)

128897 is an odd 6-digits composite number following 128896 and preceding 128898. In scientific notation, it is written as 1.28897 × 10^5. The sum of its digits is 35. It has a total of 2 prime factors and 4 positive divisors. There are 127920 positive integers (up to 128897) that are relatively prime to 128897.

Interesting facts

128897 has 4 divisors, whose sum is 129876
The reverse of 128897 is 798821
Previous prime number is 157

Basic properties

Is Prime? no
Number parity odd
Number length 6
Sum of Digits 35
Digital Root 8

Name

Name	one hundred twenty-eight thousand eight hundred ninety-seven

Notation

Scientific notation	1.28897 × 10^5
Engineering notation	1.28897 × 10^3

Prime Factorization of 128897

Prime Factorization 157 × 821

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	128897	Product of the distinct prime numbers

The prime factorization of 128897 is 157 × 821. Since it has a total of 2 prime factors.

Most popular turbo-numbers

2, 7, 22, 67, 302, 166, 5377, 8419, 50467, 3680, 834542, 963658, 6326607, 9960179, 42234105, 63928507, 947472774, 903096779, 1960470767, 8784341675

Basic calculations (n = 128897)

Multiplication

n×y

n×2	257794
n×3	386691
n×4	515588
n×5	644485

Division

n÷y

n÷2	64448.5
n÷3	42965.666666667
n÷3	32224.25
n÷5	25779.4

Exponentiation

n^y

n²	16614436609
n³	2141551035590273
n⁴	2.7603950383448E+20
n⁵	3.5580663925753E+25

Nth Root

^y√n

²√n	359.02228343099
³√n	50.514291938929
⁴√n	18.947883349625
⁵√n	10.520795085888

Divisors of 128897

1, 157, 821, 128897

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	-128896	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 128897 can be divided by 4 positive divisors. The sum of these divisors (counting 128897) is 1, the average is 0.25.

Base conversion 128897

Base	System	Value
2	Binary	11111011110000001
3	Ternary	20112210222
4	Quaternary	133132001
5	Quinary	13111042
6	Senary	2432425
8	Octal	373601
10	Decimal	128897
12	Duodecimal	62715
16	Hexadecimal	1f781
20	Vigesimal	g24h
36	Base36	2rgh

Cryptographic Hash Functions

md5	79b28cbdcabf84cf2f5842ad4a50b300
sha1	e636b4fb478502b9b0961ed6d3b3d56840d697e0
sha256	e68e2ca3fcdf0042e39e143e8d046c97b6ac545e82d3fd187d2857dd0c176db9
sha512	7a56b8aef19914b7b3ad3a1dcf1976baf4696b0c31e1eb249ae3786ccb59bb04559e49edd81b9604e14d642734a9dec029972948aecf84563024ea91e54a85d8
ripemd-160	d6f9564c7f81e6713d9fe1b9f7aed4984c626aeb

128897 as geometric shapes

Circle

Radius = n

Diameter	257794
Circumference	809883.73653953
Area	52195791994.368

Sphere

Radius = n

Volume	8.9705080009307E+15
Surface area	208783167977.47
Circumference	809883.73653953

Square

Length = n

Perimeter	515588
Area	16614436609
Diagonal	182287.8855492

Cube

Length = n

Surface area	99686619654
Volume	2141551035590273
Space diagonal	223256.15294321

Equilateral Triangle

Length = n

Perimeter	386691
Area	7194262086.4801
Altitude	111628.0764716

Triangular Pyramid

Length = n

Surface area	7194262086.4801
Volume	2.5238420992049E+14
Height	60762.628516402