Properties of the Number 1245

One Thousand Two Hundred Forty-Five

Basics

Value: 1244 → 1245 → 1246

Parity: odd

Prime: No

Previous Prime: 1237

Next Prime: 1249

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 3 × 5 × 83

Divisors: 1, 3, 5, 15, 83, 249, 415, 1245

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011011101

Octal: 2335

Duodecimal: 879

Hexadecimal: 4dd

Square: 1550025

Square Root: 35.2845575287547

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 labeled spanning intersecting set-systems on n vertices. A305843

Numbers whose sum of even digits and sum of odd digits are equal. A36301

Number of squarefree integers not exceeding 2ⁿ. A143658

Number A(n,k) of partitions of n into k sorts of parts; square array A(n,k), n>=0, k>=0, read by antidiagonals. A246935

Number of integer partitions of n that are constant or whose part multiplicities, except possibly the first and last, are all even. A349060

Irregular triangle read by rows: T(n,k) is the number of binary pattern classes in the (10,n)-rectangular grid with k '1's and (10n-k) '0's: two patterns are in the same class if one of them can be obtained by a reflection or 180-degree rotation of the other. A228169

Numbers that are the sum of 3 nonzero squares in exactly 8 ways. A25328

The number of conjugacy classes of n X n matrices over F₃. A242587

Number of "ON" cells at n-th stage in 2-dimensional cellular automaton (see Comments for precise definition). A160720

Number of powerful rooted trees with n nodes. A317707