Properties of the Number 16974

Sixteen Thousand Nine Hundred Seventy-Four

Basics

Value: 16973 → 16974 → 16975

Parity: even

Prime: No

Previous Prime: 16963

Next Prime: 16979

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ² × 23 × 41

Divisors: 1, 2, 3, 6, 9, 18, 23, 41, 46, 69

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 100001001001110

Octal: 41116

Duodecimal: 99A6

Hexadecimal: 424e

Square: 288116676

Square Root: 130.2843045036508

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

Coefficient of x⁴ in expansion of (1+x+x²)ⁿ. A5712

Starts of runs of 3 consecutive Niven numbers in base 2 (A049445). A330932

Number of positive solutions to (x₁)² + (x₂)² + ... + (x₅)² <= n². A341424

A(n,k) = !n + [n > 0] * (k·n!), where !n = A000166(n) is subfactorial of n and [] is an Iverson bracket; square array A(n,k), n>=0, k>=0, read by antidiagonals. A334715

a(0) = 1, a(1) = 3; for n>1, a(n) = n·a(n-1) + (-1)ⁿ. A110149

Numbers k such that 11·10^k - 1 is prime. A111391

a(n) is least k such that k and 9k are anagrams in base n (written in base 10). A23101

Number of primes up to 10ⁿ representable as sums of consecutive squares. A218214

a(1) = 16. For n > 1, a(n) is the position of the first occurrence of a(n-1) after the decimal point in the decimal expansion of π. A247345

a(n) = trinomial(2·n, 4) = (1/6)*n*(2·n - 1)*(2·n² + 7·n - 3). A302710