ℕ atory
Play Now

Properties of the Number 16677

Sixteen Thousand Six Hundred Seventy-Seven

Basics

Value: 16676 → 16677 → 16678

Parity: odd

Prime: No

Previous Prime: 16673

Next Prime: 16691

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 2 × 17 × 109

Divisors: 1, 3, 9, 17, 51, 109, 153, 327, 981, 1853

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 100000100100101

Octal: 40445

Duodecimal: 9799

Hexadecimal: 4125

Square: 278122329

Square Root: 129.1394595001853

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

T(n,k)=Number of (n+2)X(k+2) 0..1 arrays with every 3X3 subblock sum of the two medians of the central row and column minus the sum of the minimums of the diagonal and antidiagonal nondecreasing horizontally, vertically and ne-to-sw antidiagonally. A257154
The number of n-almost primes less than or equal to 8n, starting with a(0)=1. A116428
Number of loopless multigraphs with 8 nodes and n edges. A14398
Square spiral of sums of selected preceding terms, starting at 1 (a spiral Fibonacci-like sequence). A94767
The number of P-positions in the game of Nim with up to 4 piles, allowing for piles of zero, such that the number of objects in each pile does not exceed n. A241522
a(n) = ∑k=0..n lcm(1..2n+2)/lcm(1..2k+2). A120106
Beastly fax numbers: numbers containing the fax number of the Beast (667, one more than its regular number) in their decimal expansion. A138563
Number of non-stereoisomeric paraffins with n carbon atoms. A627
Numerators of continued fraction convergents to sqrt(474). A41904
Numbers k such that k - A067666(k) is a square. A386304