Properties of the Number 16554

Sixteen Thousand Five Hundred Fifty-Four

Basics

Value: 16553 → 16554 → 16555

Parity: even

Prime: No

Previous Prime: 16553

Next Prime: 16561

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 31 × 89

Divisors: 1, 2, 3, 6, 31, 62, 89, 93, 178, 186

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100000010101010

Octal: 40252

Duodecimal: 96B6

Hexadecimal: 40aa

Square: 274034916

Square Root: 128.66234880492428

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

Consider n equally spaced points along a line and join every pair of points by a semicircle above the line; a(n) is the number of intersection points. A290447

Egyptian fractions: number of partitions of 1 into reciprocals of positive integers <= n. A20473

Numbers k such that k and k+1 have 4 distinct prime factors. A140078

Numbers k such that k and k+1 each have at least 4 distinct prime factors. A321504

Numbers k such that k and k+1 are the product of exactly four distinct primes. A318896

Number of vertices in an equilateral triangle "frame" of size n (see Comments in A328526 for definition). A333031

prime(n²) - prime(n). A213926

Expansion of (1/x) * Series_Reversion( x * (1-x) * (1-x+x³) ). A368935

Isomorphism classes of 2-in 2-out regular digraphs, allowing parallel edges but not loops. A307180

Cycle class sequence c(n) (the number of true cycles of length n in which a certain node is included) for zeolite LOV = Lovdarite K4Na12 [Be8Si28O72].18H2O starting with a T1 atom. A19139