Properties of the Number -7803

Eight Hundred Three

Basics

Value: -7804 → -7803 → -7802

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ³ × 17 ²

Divisors: 1, 3, 9, 17, 27, 51, 153, 289, 459, 867

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1111001111011

Octal: -17173

Duodecimal: -4623

Hexadecimal: -1e7b

Square: 60886809

Square Root: 88.33459118601274

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

a(1) = a(2) = 1; a(n) = a(n-1)*a(n-2) - a(n-3) - a(n-4) - ... - a(1) for n>2. A117030

Number of partitions of n in which no parts are multiples of 3. A726

Numbers of the form p² * q³, where p,q are distinct primes. A143610

Bisection of A001400. A14125

Numbers m such that there are precisely 19 groups of order m. A298910

Array read by antidiagonals: T(n,k) = number of barred preferential arrangements of k things with n bars (k >=0, n >= 0). A226513

T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock ne-sw antidiagonal difference nondecreasing horizontally and nw+se diagonal sum nondecreasing vertically. A253749

T(n,k)=Number of 0..3 arrays of length n+2·k-1 with sum less than 3·k in any length 2k subsequence (=less than 50% duty cycle). A213464

Row 2 of array in A226513. A226515

T(n,k)=Number of nXk 0..1 arrays with no element equal to more than one of its horizontal and antidiagonal neighbors, with the exception of exactly two elements, and with new values introduced in order 0 sequentially upwards. A281056