Properties of the Number 1338

One Thousand Three Hundred Thirty-Eight

Basics

Value: 1337 → 1338 → 1339

Parity: even

Prime: No

Previous Prime: 1327

Next Prime: 1361

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 223

Divisors: 1, 2, 3, 6, 223, 446, 669, 1338

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10100111010

Octal: 2472

Duodecimal: 936

Hexadecimal: 53a

Square: 1790244

Square Root: 36.578682316343766

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

Numbers m such that the Bernoulli number B_m has denominator 42. A51228

Numbers k whose abundance is 12: σ(k) - 2·k = 12. A141545

a(n) = |{m : multiplicative order of 10 mod m is equal to n}|. A59892

Numbers m such that there are precisely 6 groups of order m. A135850

Magic numbers: atoms with full shells containing any of these numbers of electrons are considered electronically stable. A18227

Sum of the numbers in the trajectory of n for the 3x+1 problem. A33493

Numbers where 3 outnumbers any other digit. A292453

Euler-φ of these numbers is a decimal repdigit. A96503

Numbers k whose largest divisor <= sqrt(k) equals 6. A162526

a(n) = 6·prime(n). A138636