Properties of the Number -102811

One Hundred Two Thousand Eight Hundred Eleven

Basics

Value: -102812 → -102811 → -102810

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 102811

Divisors: 1, 102811

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

7925 Try Today's Challenge

Representations

Binary: -11001000110011011

Octal: -310633

Duodecimal: -4B5B7

Hexadecimal: -1919b

Square: 10570101721

Square Root: 320.64154440745824

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+1)X(k+1) 0..2 arrays with every 2X2 subblock summing to a nonzero multiple of 2. A251210

Primes that remain prime through 4 iterations of function f(x) = 5·x + 6. A23315

Number of (n+1)X(n+1) 0..2 arrays with every 2X2 subblock summing to a nonzero multiple of 2. A251202

Number of (n+1)X(3+1) 0..2 arrays with every 2X2 subblock summing to a nonzero multiple of 2. A251205

Square array read by antidiagonals in ascending order T(n,k), n > 1 and k > 0, representing the least prime p that starts a run of exactly k consecutive primes, all having the same sum of digits in base n > 1, or -1 if no such number exists. A375765

Square array read by antidiagonals in ascending order where T(n,k), n>1 and k>=1, is the least prime p, written in base n, starting a run of exactly k consecutive primes with non increasing sum of digits. A376893