Properties of the Number -4004001

Four Thousand One

Basics

Value: -4004002 → -4004001 → -4004000

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 9

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 23 ² × 29 ²

Divisors: 1, 3, 9, 23, 29, 69, 87, 207, 261, 529

Polygonal

Triangular: No

Square: Yes

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1111010001100010100001

Octal: -17214241

Duodecimal: -1411169

Hexadecimal: -3d18a1

Square: 16032024008001

Square Root: 2001

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

Squares composed of digits {0,1,4}, not ending with zero. A58414

Squares such that each digit is a square and the sum of the digits is a square. A61270

Largest n-digit square which leaves a square at every step if most significant digit and least significant digit are deleted until a one- or two-digit square is obtained. a(2n) = 0 if no such square exists. a(2n+1) = 9·10²ⁿ only if no nontrivial candidate exists. A77486

a(n) = A129967(n) with digits reversed. A129970

a(n+1) is the smallest square > a(n) such that every concatenation (n > 1) is a prime. A87352

Squares k that are not divisible by 10, and whose reverse and digit sum are also squares, such that the digit sum divides both k and its reverse. A354078

a(1) = 1; a(n+1) = smallest square > a(n) with leading digit equal to final digit of a(n) and final digit not 0. A61449

Squares which leave a square at every step if most significant digit and least significant digit are deleted until a one-digit or two-digit square is obtained. A77487