Properties of the Number 18796

Eighteen Thousand Seven Hundred Ninety-Six

Basics

Value: 18795 → 18796 → 18797

Parity: even

Prime: No

Previous Prime: 18793

Next Prime: 18797

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 2 ² × 37 × 127

Divisors: 1, 2, 4, 37, 74, 127, 148, 254, 508, 4699

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8509 Try Today's Challenge

Representations

Binary: 100100101101100

Octal: 44554

Duodecimal: AA64

Hexadecimal: 496c

Square: 353289616

Square Root: 137.09850473291092

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

4 times 9-gonal numbers: a(n) = 2·n*(7·n-5). A152760

Successively larger gaps in Ulam numbers start at this Ulam number. A80287

1/16 the number of (n+1) X 5 0..3 arrays with all 2 X 2 subblocks having the same four values. A184034

G.f. satisfies: A(x) = 1 + x·AGM(A(x)⁴, A(-x)⁴). A245928

Numbers k such that k·A001414(k)+1 is the square of a prime. A343141

Number of length-n 0..2 arrays with no adjacent pair x,x+1 followed at any distance by x+1,x. A268451

a(n) = a(n-1) + 3·a(n-2) -2·a(n-3) - 2·a(n-4), where a(0) = 1, a(1) = 3, a(2) = 5, a(3) = 7. A295717

a(n) = ∑_i=1..n binomial(i+1,2)⁷. A85442

Smallest square that begins with n. A18796

T(n,k) = 1/16 the number of (n+1) X (k+1) 0..3 arrays with all 2 X 2 subblocks having the same four values. A184039