Properties of the Number 1994

One Thousand Nine Hundred Ninety-Four

Basics

Value: 1993 → 1994 → 1995

Parity: even

Prime: No

Previous Prime: 1993

Next Prime: 1997

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 × 997

Divisors: 1, 2, 997, 1994

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 11111001010

Octal: 3712

Duodecimal: 11A2

Hexadecimal: 7ca

Square: 3976036

Square Root: 44.654227123532216

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

Number of integer partitions of n in which no two distinct parts are relatively prime. A328673

Table by antidiagonals, T(n,k) is the number of partitions of {1..(nk)} that are invariant under a permutation consisting of n k-cycles. A162663

Numbers where 9 outnumbers any other digit. A292449

Numbers k such that φ(k) = φ(k+2). A1494

The number of partitions of {1..3n} that are invariant under a permutation consisting of n 3-cycles. A2874

Number of partitions of n such that (greatest part) - (least part) = number of parts. A237832

Number of integer partitions y of n such that ∏_{i in y} prime(i)/i is an integer. A324925

Analog of A121805, but starting with 4. A366492

Expansion of 1/(1-x⁹-x¹⁰-x¹¹-x¹²-x¹³-x¹⁴-x¹⁵-x¹⁶-x¹⁷-x¹⁸). A17885

a(n) = a(n-1) + a(m) for n >= 4, where m = 2·n - 2 - 2^p+1 and p is the unique integer such that 2^p < n - 1 <= 2^p+1, starting with a(1) = 1 and a(2) = a(3) = 2. A50047