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

128972 (number)

128972 is an even 6-digits composite number following 128971 and preceding 128973. In scientific notation, it is written as 1.28972 × 10^5. The sum of its digits is 29. It has a total of 4 prime factors and 12 positive divisors. There are 61056 positive integers (up to 128972) that are relatively prime to 128972.

Interesting facts

128972 has 12 divisors, whose sum is 237720
The reverse of 128972 is 279821
Previous prime number is 19

Basic properties

Is Prime? no
Number parity even
Number length 6
Sum of Digits 29
Digital Root 2

Name

Name	one hundred twenty-eight thousand nine hundred seventy-two

Notation

Scientific notation	1.28972 × 10^5
Engineering notation	1.28972 × 10^3

Prime Factorization of 128972

Prime Factorization 2 × 2 × 19 × 1697

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	4	Total number of prime factors
rad	Radical	64486	Product of the distinct prime numbers

The prime factorization of 128972 is 2 × 2 × 19 × 1697. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 4, 98, 30, 826, 573, 4887, 3925, 292, 15212, 384549, 344420, 1248911, 1555453, 11098410, 57140362, 967150414, 351888688, 7041519543, 3437118866

Basic calculations (n = 128972)

Multiplication

n×y

n×2	257944
n×3	386916
n×4	515888
n×5	644860

Division

n÷y

n÷2	64486
n÷3	42990.666666667
n÷3	32243
n÷5	25794.4

Exponentiation

n^y

n²	16633776784
n³	2145291459386048
n⁴	2.7668253009994E+20
n⁵	3.5684299272049E+25

Nth Root

^y√n

²√n	359.12671858273
³√n	50.524087453505
⁴√n	18.950639001963
⁵√n	10.522019126862

Divisors of 128972

1, 2, 4, 19, 38, 76, 1697, 3394, 6788, 32243, 64486, 128972

12 divisors

τ	Total Divisors	12	Total number of the positive divisors of n
σ	Sum of Divisors	1	Sum of all the positive divisors of n
s	Aliquot Sum	-128971	Sum of the proper positive divisors of n
A	Arithmetic Mean	0.083333333333333	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	12	Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 128972 can be divided by 12 positive divisors. The sum of these divisors (counting 128972) is 1, the average is 0.083333333333333.

Base conversion 128972

Base	System	Value
2	Binary	11111011111001100
3	Ternary	20112220202
4	Quaternary	133133030
5	Quinary	13111342
6	Senary	2433032
8	Octal	373714
10	Decimal	128972
12	Duodecimal	62778
16	Hexadecimal	1f7cc
20	Vigesimal	g28c
36	Base36	2rik

Cryptographic Hash Functions

md5	bf12bfd0e8a3f9259df0eb095cb9bfbf
sha1	c36ff0689fec41aa6f549db5f131e4f9181738c4
sha256	68e4ee3562ec6d256f430bd3eea7dd33a1f8619fd86f7e4ba7bafea325a62313
sha512	6c93afbf4d46f39ec6e63487ca7456847cc72e580987585b414f81b7f605e249302c79aa2838bfdb189c12fe18f505f868c467b6bad43e1db7f3685a53ac7df5
ripemd-160	0291025074607b1ffb06cb0888d83b3b9a305a02

128972 as geometric shapes

Circle

Radius = n

Diameter	257944
Circumference	810354.97543757
Area	52256550946.067

Sphere

Radius = n

Volume	8.9861758514882E+15
Surface area	209026203784.27
Circumference	810354.97543757

Square

Length = n

Perimeter	515888
Area	16633776784
Diagonal	182393.95156638

Cube

Length = n

Surface area	99802660704
Volume	2145291459386048
Space diagonal	223386.05675377

Equilateral Triangle

Length = n

Perimeter	386916
Area	7202636627.9119
Altitude	111693.02837689

Triangular Pyramid

Length = n

Surface area	7202636627.9119
Volume	2.5282502309224E+14
Height	60797.983855461