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Properties of the Number 2001

Two Thousand One

Basics

Value: 2000 → 2001 → 2002

Parity: odd

Prime: No

Previous Prime: 1999

Next Prime: 2003

Digit Sum: 3

Digital Root: 3

Palindrome: No

Factorization: 3 × 23 × 29

Divisors: 1, 3, 23, 29, 69, 87, 667, 2001

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 11111010001

Octal: 3721

Duodecimal: 11A9

Hexadecimal: 7d1

Square: 4004001

Square Root: 44.73253849269008

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

Integers written in factorial base. A7623
Expansion of ∏k>=1 1/(1 - A000009(k)*xk). A270995
Numbers whose sum of digits is 3. A52217
Representation of n in base of Catalan numbers (a classic greedy version). A14418
Numbers where 0 outnumbers any other digit. A292450
a(n) = solution to the postage stamp problem with n denominations and 8 stamps. A5343
a(n) = solution to the postage stamp problem with 7 denominations and n stamps. A53346
MM-numbers of nesting multiset partitions. A326256
Expansion of n in the p-system based on convergents to sqrt(2). A317204
MM-numbers of capturing multiset partitions. A326255

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