Properties of the Number 30984

Thirty Thousand Nine Hundred Eighty-Four

Basics

Value: 30983 → 30984 → 30985

Parity: even

Prime: No

Previous Prime: 30983

Next Prime: 31013

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 ³ × 3 × 1291

Divisors: 1, 2, 3, 4, 6, 8, 12, 24, 1291, 2582

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 111100100001000

Octal: 74410

Duodecimal: 15B20

Hexadecimal: 7908

Square: 960008256

Square Root: 176.02272580550502

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

Aliquot sequence starting at 552. A14360

Number of ways to place 4 nonattacking kings on a 4 X n board. A172203

The number of grains of sand in the identity element for the 3D sandpile group on an n X n X n cubic grid. A351379

a(n) = 64·n² + 8. A158488

Numbers k such that k divides the (left) concatenation of all numbers <= k written in base 5 (most significant digit on right and removing all least significant zeros before concatenation). A29522

Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 44. A31722

Record-setting differences between adjacent elements of the Mian-Chowla sequence variant A058335. A80931

Open 3-dimensional ball numbers (version 3): a(n) is the number of integer points (i,j,k) contained in an open ball of diameter n, centered at (1/2,1/2,0). A53595

A symmetrical triangle of polynomial coefficients:p(x,n)=If[n == 0, 1, (1 - x)^{n + 1}*Sum[((2·k + 1)ⁿ + (k + 1)ⁿ + kⁿ)*x^k, {k, 0, Infinity}]/2]. A177984

2-automorphic numbers: final digits of 2·n² agree with n. A30984