Properties of the Number -16975

Sixteen Thousand Nine Hundred Seventy-Five

Basics

Value: -16976 → -16975 → -16974

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 5 ² × 7 × 97

Divisors: 1, 5, 7, 25, 35, 97, 175, 485, 679, 2425

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100001001001111

Octal: -41117

Duodecimal: -99A7

Hexadecimal: -424f

Square: 288150625

Square Root: 130.28814220795383

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)Xk 0..1 arrays with all rows having a nonnegative second derivative, and all and columns having a positive second derivative in a quadratic least squares fit, with one and two element arrays taken as having a zero second derivative. A223652

a(n) is the largest term encountered on the path to 0 when iterating the map x -> x', and starting from x = A351255(n). Here x' means the arithmetic derivative of x, A003415. A351261

Self-inverse permutation of natural numbers: a(0) = 0, a(1) = 1, and for n > 1, if A117966(n) < 0, a(n) = A117967(1+a(-(A117966(n)))), otherwise a(n) = A117968(a(A117966(n)-1)). A246211

Position of 5ⁿ in A051037 (5-smooth numbers). A188427

a(n) = 10·n² + 4·n + 1. A272039

Odd 9-gonal (or enneagonal) numbers. A28991

a(n) = ceiling((n + 7/10)³). A34133

Number of second differences of arrays of length 4 of numbers in 0..n. A228219

Position of cubes in the EKG sequence (A064413). A140418

a(n) = (2·n³ + 5·n² - 17·n)/2. A162259