Properties of the Number 20700

Twenty Thousand Seven Hundred

Basics

Value: 20699 → 20700 → 20701

Parity: even

Prime: No

Previous Prime: 20693

Next Prime: 20707

Digit Sum: 9

Digital Root: 9

Palindrome: No

Factorization: 2 ² × 3 ² × 5 ² × 23

Divisors: 1, 2, 3, 4, 5, 6, 9, 10, 12, 15

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 101000011011100

Octal: 50334

Duodecimal: BB90

Hexadecimal: 50dc

Square: 428490000

Square Root: 143.87494569938158

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

Exponential abundant numbers: integers k for which A126164(k) > k, or equivalently for which A051377(k) > 2k. A129575

Number of degree-n permutations of order dividing 30. A53505

Structured meta-prism numbers, the n-th number from a structured n-gonal prism number sequence. A100177

Exponential unitary abundant numbers: numbers k such that A322857(k) > 2·k. A383693

Numbers that have exactly three exponents in their prime factorization that are equal to 2. A386798

Exponential aspiring numbers. A127658

a(n) = 23·n². A244632

a(n) = ∏_{d∣n, d<n} prime(A286622(d)-1). A305792

Number T(n,k) of permutations of [n] with exactly k distinct lengths of increasing runs; triangle T(n,k), n>=0, 0<=k<=A003056(n), read by rows. A317327

a(n) is the smallest nonnegative integer k where exactly n pairs of positive integers (x, y) exist such that x² + 11·y² = k. A374160