Properties of the Number 30012

Thirty Thousand Twelve

Basics

Value: 30011 → 30012 → 30013

Parity: even

Prime: No

Previous Prime: 30011

Next Prime: 30013

Digit Sum: 6

Digital Root: 6

Palindrome: No

Factorization: 2 ² × 3 × 41 × 61

Divisors: 1, 2, 3, 4, 6, 12, 41, 61, 82, 122

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 111010100111100

Octal: 72474

Duodecimal: 15450

Hexadecimal: 753c

Square: 900720144

Square Root: 173.23971830963015

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Length of the long leg in the unique primitive Pythagorean triple (x,y,z) such that (x-y+z)/2 is A000032(n) and such that its long leg and its hypotenuse are consecutive natural numbers. A382379

Least common multiple of 7·n+1 and 7·n-1. A282286

a(n) = A276085(n) - A003415(n), where A003415 is the arithmetic derivative and A276085 is the primorial base log-function. A373146

2n⁴+6n²+4 = 2(n²+1)(n²+2). A120571

E.g.f.: exp( ∑_n>=1 (1 - exp(-n·x))ⁿ / n ). A244437

Number of partitions of n with at most four part sizes. A364793

k sequence associated with A112550. A112551

Numbers n such that n is both the average of some twin prime pair p, q (q = p+2) (i.e., n = p+1 = q-1) and is also the arithmetic mean of the four numbers consisting of the two primes before p and the two primes after q. A256620

Number of 3Xn 0..1 arrays with every element equal to 0, 1, 3 or 6 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero. A302636

Number of ordered 5-tuples of integers from [ 2,n ] with no common factors among quadruples. A15655