Properties of the Number 18692

Eighteen Thousand Six Hundred Ninety-Two

Basics

Value: 18691 → 18692 → 18693

Parity: even

Prime: No

Previous Prime: 18691

Next Prime: 18701

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 2 ² × 4673

Divisors: 1, 2, 4, 4673, 9346, 18692

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 100100100000100

Octal: 44404

Duodecimal: A998

Hexadecimal: 4904

Square: 349390864

Square Root: 136.7186892857008

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

Number of partitions of n into an even number of parts. A27187

Number of partitions of 2n of type EE (see Comments). A236913

Number of cycle types of conjugacy classes of all even permutations of n elements. A46682

Number of integer partitions of n with reverse-alternating product <= 1. A347443

T(n,k)=Number of -k..k arrays x(0..n+1) of n+2 elements with zero sum and nonzero first and second differences. A200454

Smallest base b > 1 such that both prime(n) and prime(n+1) are base-b Wieferich primes, i.e., p = prime(n) satisfies b^p-1 == 1 (mod p²) and q = prime(n+1) satisfies b^q-1 == 1 (mod q²). A259075

Triangle read by rows: T(n,k) is number of Dyck paths of semilength n and having k UDUD's (here U=(1,1), D=(1,-1)). A94507

Length of row n of the array in A274183. A274184

Number of Dyck paths of semilength n having exactly one occurrence of the consecutive pattern UDUD. A244236

High water marks for number of primes between prime(n)² and prime(n+1)². A380135