Properties of the Number 20707

Twenty Thousand Seven Hundred Seven

Basics

Value: 20706 → 20707 → 20708

Parity: odd

Prime: Yes

Previous Prime: 20693

Next Prime: 20717

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 20707

Divisors: 1, 20707

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 101000011100011

Octal: 50343

Duodecimal: BB97

Hexadecimal: 50e3

Square: 428779849

Square Root: 143.89927032476572

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

Partial sums of A299274. A299275

Numbers that are the sum of 3 positive 9th powers. A3392

Numbers that are the sum of 7 nonzero 8th powers. A3385

Primes having only {0, 2, 7} as digits. A261267

Numbers that are the sum of eight fourth powers in exactly eight ways. A345840

Expansion of (1 - 2·x - 2·x²)/((1 - 2·x)*(1 - 3·x)). A85279

Prime time primes on 6-digit clocks, second definition: primes of the form HMMSS where H, MM, SS are primes, H < 24, MM and SS < 60. A295013

Primes for which the period of the reciprocal equals (p-1)/14. A135073

Primes of the form x² + 7·y², where·and y=x+1 are consecutive natural numbers. A176616

Primes equal to a hexagonal number plus 1. A285790