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

31985 (number)

31985 is an odd 5-digits composite number following 31984 and preceding 31986. In scientific notation, it is written as 3.1985 × 10^4. The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors. There are 25584 positive integers (up to 31985) that are relatively prime to 31985.

Interesting facts

31985 has 4 divisors, whose sum is 38388
The reverse of 31985 is 58913
Previous prime number is 5

Basic properties

Is Prime? no
Number parity odd
Number length 5
Sum of Digits 26
Digital Root 8

Name

Name	thirty-one thousand nine hundred eighty-five

Notation

Scientific notation	3.1985 × 10^4
Engineering notation	3.1985 × 10^3

Prime Factorization of 31985

Prime Factorization 5 × 6397

Composite number

ω	Distinct Factors	2	Total number of distinct prime factors
Ω	Total Factors	2	Total number of prime factors
rad	Radical	31985	Product of the distinct prime numbers

The prime factorization of 31985 is 5 × 6397. Since it has a total of 2 prime factors.

Most popular turbo-numbers

5, 6, 52, 10, 280, 875, 6259, 8592, 12557, 54100, 767174, 684774, 3611634, 3540297, 73573132, 28758028, 624127027, 997844540, 8229194405, 3436280967

Basic calculations (n = 31985)

Multiplication

n×y

n×2	63970
n×3	95955
n×4	127940
n×5	159925

Division

n÷y

n÷2	15992.5
n÷3	10661.666666667
n÷3	7996.25
n÷5	6397

Exponentiation

n^y

n²	1023040225
n³	32721941596625
n⁴	1046611301968050625
n⁵	3.3475862493448E+22

Nth Root

^y√n

²√n	178.84350701102
³√n	31.743059635777
⁴√n	13.373238463851
⁵√n	7.9613968201262

Divisors of 31985

1, 5, 6397, 31985

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	-31984	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 31985 can be divided by 4 positive divisors. The sum of these divisors (counting 31985) is 1, the average is 0.25.

Base conversion 31985

Base	System	Value
2	Binary	111110011110001
3	Ternary	1121212122
4	Quaternary	13303301
5	Quinary	2010420
6	Senary	404025
8	Octal	76361
10	Decimal	31985
12	Duodecimal	16615
16	Hexadecimal	7cf1
20	Vigesimal	3jj5
36	Base36	ooh

Cryptographic Hash Functions

md5	a5f8cafb26aa3fd483c73e20ddf07858
sha1	2063310dd9ce2985ae9484bf71066d2ed69f6ec4
sha256	beaab0f03a3b153a95973ecac81ce886c0b84438fd414c6468cfcbe76d70e4c2
sha512	9498fc6995c350dde125818e2cd0e1cc9210048b7e326a555c019d0d9c4e6db3ee13ffd633690ba4f1fad8b84020b01eadaf194a194e055482ee008f1b523c3a
ripemd-160	4e34a51ad68dc79cd192872d3a3fc89c4b15e9b9

31985 as geometric shapes

Circle

Radius = n

Diameter	63970
Circumference	200967.68205014
Area	3213975655.1868

Sphere

Radius = n

Volume	1.3706534844154E+14
Surface area	12855902620.747
Circumference	200967.68205014

Square

Length = n

Perimeter	127940
Area	1023040225
Diagonal	45233.620792503

Cube

Length = n

Surface area	6138241350
Volume	32721941596625
Space diagonal	55399.645080091

Equilateral Triangle

Length = n

Perimeter	95955
Area	442989411.97167
Altitude	27699.822540045

Triangular Pyramid

Length = n

Surface area	442989411.97167
Volume	3856317799427.3
Height	15077.873597501