Properties of the Number 16421

Sixteen Thousand Four Hundred Twenty-One

Basics

Value: 16420 → 16421 → 16422

Parity: odd

Prime: Yes

Previous Prime: 16417

Next Prime: 16427

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 16421

Divisors: 1, 16421

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 100000000100101

Octal: 40045

Duodecimal: 9605

Hexadecimal: 4025

Square: 269649241

Square Root: 128.14444974324874

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

Primes of the form 43·n² - 537·n + 2971 in order of increasing nonnegative values of n. A272285

Primes p+2ⁿ arising in A056206. A56208

Sum of smallest parts of all partitions of n into an even number of parts. A222045

Primes of the form abs(3n³ - 183n² + 3318n - 18757) in order of increasing nonnegative n. A272401

Primes p such that p1=Floor[p/2]+p is prime and p2=Ceiling[p1/2]+p1 is prime. A158712

Primes of the form 3·m² - 7. A201718

Consecutive states of the linear congruential pseudo-random number generator (25173·s+13849) mod 2¹⁶ when started at s=1. A383940

Prime arithmetic mean of ten consecutive primes. A123096

a(n) = ∑_k=1..n C(n-k, floor((n-k)/k)). A273161

Numbers n with property that for each single digit d of n, we can also see the decimal expansion of 2^d as a substring of n. Also n may not contain any zero digits. A135016