Properties of the Number -83161

Eighty-Three Thousand One Hundred Sixty-One

Basics

Value: -83162 → -83161 → -83160

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 13 × 6397

Divisors: 1, 13, 6397, 83161

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8109 Try Today's Challenge

Representations

Binary: -10100010011011001

Octal: -242331

Duodecimal: -40161

Hexadecimal: -144d9

Square: 6915751921

Square Root: 288.37649002649295

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

Expansion of (-1+3·x+2·x²-8·x³+3·x⁵-2·x⁶-2·x⁷+x⁸) / ((x-1)*(x+1)*(x²-2·x-1)*(x²+2·x-1)). A110225

The first number that is (at least) n-fold intrinsically 3-palindromic (represented in base ten). A171702

Becomes prime after n iterations of f(x) = σ(x)-1 (least inverse of A039655). A39656

a(n) is smallest positive integer multiple of n-th prime, say k·prime(n), such that k·prime(n) == 1 (mod j) for each integer j with 1 < j < prime(n). A94998

List of numbers n such that A039654(n) reaches a new record high. A292113

List of numbers n such that A039655(n) reaches a new record high. A292114

Number of regions in a regular 2n-gon when all vertices are connect by straight lines except for the n lines joining diametrically opposite vertices. A368813

a(n) is the smallest integer k > 1 that satisfies k mod j <= 1 for all integers j in 1..n. A361246

Denominators of continued fraction convergents to sqrt(483). A41923

Smallest number that is centered polygonal in exactly n ways. A63773