Properties of the Number 1228

One Thousand Two Hundred Twenty-Eight

Basics

Value: 1227 → 1228 → 1229

Parity: even

Prime: No

Previous Prime: 1223

Next Prime: 1229

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 2 ² × 307

Divisors: 1, 2, 4, 307, 614, 1228

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 10011001100

Octal: 2314

Duodecimal: 864

Hexadecimal: 4cc

Square: 1507984

Square Root: 35.04283093587046

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 such that it is possible to choose a different prime factor of each part. A370592

a(n) = n² + 3. A117950

Number of partitions of n into aliquant parts (i.e., parts that do not divide n). A98743

Primes multiplied by 4. A1749

Numbers k such that 2^k - 5 is prime. A59608

Triangle of coefficients in expansion of elliptic function sn(u) in powers of u and k. A60628

Positions of occurrences of the natural numbers as a second subsequence in A100035. A100037

Numbers where 2 outnumbers any other digit. A292452

Numbers k such that 2^k + 1 is a semiprime. A92559

Main diagonal of array in A358304, divided by 2. A358307