Properties of the Number -102051

One Hundred Two Thousand Fifty-One

Basics

Value: -102052 → -102051 → -102050

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 9

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 17 × 23 × 29

Divisors: 1, 3, 9, 17, 23, 29, 51, 69, 87, 153

Polygonal

Triangular: No

Square: No

Pentagonal: Yes

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -11000111010100011

Octal: -307243

Duodecimal: -4B083

Hexadecimal: -18ea3

Square: 10414406601

Square Root: 319.4542220725843

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 plane regions after drawing (in general position) a convex n-gon and all its diagonals. A27927

Denominator of ∏_k=0..n ((2·k+1)/(2·k+2))^(-1^t(k)) where t(k)=A010060(k) (Thue-Morse sequence). A94542

a(n) = sum of squares of first n positive integers congruent to 1 mod 4. A24381

Numbers which are both lucky and pentagonal. A128511

a(n) = least natural number k such that f(k) begins a maximal zigzag of length n in the prime gaps function f(x) = p(x+1)-p(x), where p(x) denotes the x-th prime. (Cf. A066485.) A66918

Q-residue of the Lucas triangle A114525, where Q is the triangle given by t(i,j)=1 for 0<=i<=j. (See Comments.) A193662

Nearest integer to log(n!)^{1 + log(1 + log(1 + n})). A62446

a(0)=a(1)=1. a(n) = the multiple of n which is >= a(n-1)+a(n-2) and is < a(n-1)+a(n-2)+n. A128035

Denominators of the BG1[ -5,n] coefficients of the BG1 matrix. A162444

Pentagonal numbers which are the arithmetic mean of two consecutive primes. A234531