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

30891 (number)

30891 is an odd 5-digits composite number following 30890 and preceding 30892. In scientific notation, it is written as 3.0891 × 10^4. The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors. There are 17640 positive integers (up to 30891) that are relatively prime to 30891.

Interesting facts

30891 has 8 divisors, whose sum is 47104
The reverse of 30891 is 19803
Previous prime number is 3

Basic properties

Is Prime? no
Number parity odd
Number length 5
Sum of Digits 21
Digital Root 3

Name

Name	thirty thousand eight hundred ninety-one

Notation

Scientific notation	3.0891 × 10^4
Engineering notation	3.0891 × 10^3

Prime Factorization of 30891

Prime Factorization 7 × 3 × 1471

Composite number

ω	Distinct Factors	3	Total number of distinct prime factors
Ω	Total Factors	3	Total number of prime factors
rad	Radical	30891	Product of the distinct prime numbers

The prime factorization of 30891 is 7 × 3 × 1471. Since it has a total of 3 prime factors.

Most popular turbo-numbers

2, 2, 88, 45, 670, 920, 5796, 9705, 56841, 36511, 936932, 736170, 173546, 3348981, 86274020, 86299196, 304194321, 753939711, 6926701674, 1425071581

Basic calculations (n = 30891)

Multiplication

n×y

n×2	61782
n×3	92673
n×4	123564
n×5	154455

Division

n÷y

n÷2	15445.5
n÷3	10297
n÷3	7722.75
n÷5	6178.2

Exponentiation

n^y

n²	954253881
n³	29477856637971
n⁴	910600469403562161
n⁵	2.8129359100345E+22

Nth Root

^y√n

²√n	175.75835684257
³√n	31.376944954375
⁴√n	13.257388764103
⁵√n	7.9061744619704

Divisors of 30891

1, 3, 7, 21, 1471, 4413, 10297, 30891

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	-30890	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 30891 can be divided by 8 positive divisors. The sum of these divisors (counting 30891) is 1, the average is 0.125.

Base conversion 30891

Base	System	Value
2	Binary	111100010101011
3	Ternary	1120101010
4	Quaternary	13202223
5	Quinary	1442031
6	Senary	355003
8	Octal	74253
10	Decimal	30891
12	Duodecimal	15a63
16	Hexadecimal	78ab
20	Vigesimal	3h4b
36	Base36	nu3

Cryptographic Hash Functions

md5	2f201f1f5c6089c6ceb7086dd22d6447
sha1	d147ef64c0bbfbe36dc916faf4a2c12023fe36ed
sha256	3d8a1e2d3cef73a1754f3a2aa87f87f7fe74269e7cd8fc7fcb89b2bdd0b6ee86
sha512	3361b8e1a19273bd566c104b119425486ee9e60d330b098f8d4f7baebae51d6e81ecdc51cfe8693881571b5b55c79f008970bd4ee2632ecd0d4f33f73e44498b
ripemd-160	c382fb88a1de1c61fdfefe34717c596f453df079

30891 as geometric shapes

Circle

Radius = n

Diameter	61782
Circumference	194093.87732408
Area	2997876982.2091

Sphere

Radius = n

Volume	1.2347655714323E+14
Surface area	11991507928.837
Circumference	194093.87732408

Square

Length = n

Perimeter	123564
Area	954253881
Diagonal	43686.471155267

Cube

Length = n

Surface area	5725523286
Volume	29477856637971
Space diagonal	53504.78149661

Equilateral Triangle

Length = n

Perimeter	92673
Area	413204051.30295
Altitude	26752.390748305

Triangular Pyramid

Length = n

Surface area	413204051.30295
Volume	3473998720592.4
Height	14562.157051756