Properties of the Number 13421

Thirteen Thousand Four Hundred Twenty-One

Basics

Value: 13420 → 13421 → 13422

Parity: odd

Prime: Yes

Previous Prime: 13417

Next Prime: 13441

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 13421

Divisors: 1, 13421

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11010001101101

Octal: 32155

Duodecimal: 7925

Hexadecimal: 346d

Square: 180123241

Square Root: 115.84903970253703

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

Smallest prime of the form (n^k+1)/(n+1), or 0 if no such prime exists. A84741

a(n) = n⁴ - n³ + n² - n + 1. A60884

Number of integer partitions of n with a unique prime part. A379304

Lower prime of a difference of 20 between consecutive primes. A31938

Mountain primes. A134951

Triangle of q-binomial coefficients for q=-11. A15124

Primes p such that the multiplicative order of 2 modulo p is (p-1)/5. A1135

Least prime in A031938 (lesser of primes differing by 20) whose distance to the next 20-twin is 6·n. A52359

Primes which can be written as (b^k+1)/(b+1) for positive integers b and k. A59055

Smallest primitive prime factor of 11ⁿ-1. A379644