Properties of the Number 30220

Thirty Thousand Two Hundred Twenty

Basics

Value: 30219 → 30220 → 30221

Parity: even

Prime: No

Previous Prime: 30211

Next Prime: 30223

Digit Sum: 7

Digital Root: 7

Palindrome: No

Factorization: 2 ² × 5 × 1511

Divisors: 1, 2, 4, 5, 10, 20, 1511, 3022, 6044, 7555

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 111011000001100

Octal: 73014

Duodecimal: 155A4

Hexadecimal: 760c

Square: 913248400

Square Root: 173.83900597967073

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

Number of integer compositions of n whose leaders of weakly increasing runs are not strictly decreasing. A375140

Series for second perpendicular moment of hexagonal lattice. A6742

Fibonacci sequence beginning 1, 30. A22400

McKay-Thompson series of class 22A for Monster. A58567

Convolution of the prime numbers with φ(n). A86734

Indices of primes in sequence defined by A(0) = 17, A(n) = 10·A(n-1) - 63 for n > 0. A102007

Number of nX5 0..1 arrays with every element unequal to 0, 1, 3 or 6 king-move adjacent elements, with upper left element zero. A304130

T(n,k)=Number of nXk 0..1 arrays with every element unequal to 0, 1, 3 or 6 king-move adjacent elements, with upper left element zero. A304133

Expansion of (η(q³)*η(q⁵))³ in powers of q. A30220