Properties of the Number 30021

Thirty Thousand Twenty-One

Basics

Value: 30020 → 30021 → 30022

Parity: odd

Prime: No

Previous Prime: 30013

Next Prime: 30029

Digit Sum: 6

Digital Root: 6

Palindrome: No

Factorization: 3 × 10007

Divisors: 1, 3, 10007, 30021

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 111010101000101

Octal: 72505

Duodecimal: 15459

Hexadecimal: 7545

Square: 901260441

Square Root: 173.2656919300529

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

The smallest magic constant of an n X n magic square with distinct prime entries. A164843

Fibonacci sequence beginning 1, 11. A22101

a(1) = 1; thereafter, a(n) is always the smallest integer > a(n-1) not leading to a contradiction, such that any three consecutive digits in the sequence sum up to a prime. A152603

Coefficients of the D-Dyson mod 27 identity. A104504

Numbers n such that n divides the (left) concatenation of all numbers <= n written in base 19 (most significant digit on right and removing all least significant zeros before concatenation). A29536

Number of integers in n-th generation of tree T(3^-1/3) defined in Comments. A274159

θ series of 8-dimensional extremal strongly 10-modular lattice. A30021