Properties of the Number -2007

Seven

Basics

Value: -2008 → -2007 → -2006

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 9

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 223

Divisors: 1, 3, 9, 223, 669, 2007

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -11111010111

Octal: -3727

Duodecimal: -11B3

Hexadecimal: -7d7

Square: 4028049

Square Root: 44.799553569204235

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-x)/(1-x-x²+2·x³). A78011

First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 57", based on the 5-celled von Neumann neighborhood. A270078

First differences of number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 137", based on the 5-celled von Neumann neighborhood. A270277

Number of partitions of n such that the least part occurs exactly twice. A96373

Generalized 15-gonal (or pentadecagonal) numbers: n*(13·n - 11)/2, n = 0,+1,-1,+2,-2,+3,-3, ... A277082

Numbers where 0 outnumbers any other digit. A292450

Numbers whose base-2 and base-10 expansions have the same digit sum. A37308

T(n,k) = Hilltop maps: number of nXk binary arrays indicating the locations of corresponding elements not exceeded by any horizontal or vertical neighbor in a random 0..1 n X k array. A218354

a(n) is the number of ways to partition an n X n X n cube into 4 noncongruent cuboids. A384311

Smallest of 3 consecutive numbers each divisible by a square. A70258