Properties of the Number 16653

Sixteen Thousand Six Hundred Fifty-Three

Basics

Value: 16652 → 16653 → 16654

Parity: odd

Prime: No

Previous Prime: 16651

Next Prime: 16657

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 7 × 13 × 61

Divisors: 1, 3, 7, 13, 21, 39, 61, 91, 183, 273

Polygonal

Triangular: Yes

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 100000100001101

Octal: 40415

Duodecimal: 9779

Hexadecimal: 410d

Square: 277322409

Square Root: 129.04650324592293

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 reduced words of length n in the Weyl group D₁₃. A162300

a(n) = n*(n+1)*(n²+n+1)/2. A110450

a(n) = A185128(n) + A185129(n). A185243

Structured rhombic triacontahedral numbers (vertex structure 11). A100164

Triangular numbers with sum of digits = 21. A68131

First differences of A036449, triangular numbers by definition. A189475

Triangle of coefficients of polynomials v(n,x) jointly generated with A210747; see the Formula section. A210748

Triangular numbers that are hypotenuse and a leg of a Pythagorean triple. A213188

Quasi-Carmichael numbers to base -7: squarefree composites n such that prime p∣n ==> p+7∣n+7. A29567

Numerators of continued fraction convergents to sqrt(991). A42918