Properties of the Number 1340

One Thousand Three Hundred Forty

Basics

Value: 1339 → 1340 → 1341

Parity: even

Prime: No

Previous Prime: 1327

Next Prime: 1361

Digit Sum: 8

Digital Root: 8

Palindrome: No

Factorization: 2 ² × 5 × 67

Divisors: 1, 2, 4, 5, 10, 20, 67, 134, 268, 335

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10100111100

Octal: 2474

Duodecimal: 938

Hexadecimal: 53c

Square: 1795600

Square Root: 36.60601043544625

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

Partial sums of A243980. A244050

Number of integer partitions of n with a part dividing all the other parts. A83710

Snowflake (or E-toothpick) sequence (see Comments lines for definition). A161330

Number T(n,k) of equivalence classes of ways of placing k 2 X 2 tiles in an n X 3 rectangle under all symmetry operations of the rectangle; irregular triangle T(n,k), n>=2, 0<=k<=floor(n/2), read by rows. A238009

Numbers m such that there are precisely 11 groups of order m. A249554

Cald's sequence: a(n+1) = a(n) - prime(n) if that value is positive and new, otherwise a(n) + prime(n) if new, otherwise 0; start with a(1)=1. A6509

Number of totally strong integer partitions of n. A316496

Triangle read by rows: T(n,k) = number of vertices in a "frame" of size n X k (see Comments in A331457 for definition). A332599

Smallest number at distance n from nearest prime. A51652

Row sums of A168281. A168380