Properties of the Number 1298

One Thousand Two Hundred Ninety-Eight

Basics

Value: 1297 → 1298 → 1299

Parity: even

Prime: No

Previous Prime: 1297

Next Prime: 1301

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 × 11 × 59

Divisors: 1, 2, 11, 22, 59, 118, 649, 1298

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10100010010

Octal: 2422

Duodecimal: 902

Hexadecimal: 512

Square: 1684804

Square Root: 36.02776706930364

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 partitions of n into prime parts. A607

Number of points on surface of octahedron; also coordination sequence for cubic lattice: a(0) = 1; for n > 0, a(n) = 4n² + 2. A5899

a(n) = n² + 2. A59100

Numbers which are the sum of 3 nonzero 4th powers. A3337

a(n) = 3·a(n-1) + a(n-2) with a(0) = 2, a(1) = 3. A6497

Number of certain noncrossing set partitions. A280891

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

Inverse Moebius transform of triangular numbers. A7437

Number of partitions of n into parts which are all powers of the same prime. A64573

Numbers whose sum of digits is 20. A235229