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Properties of the Number 1898

One Thousand Eight Hundred Ninety-Eight

Basics

Value: 1897 → 1898 → 1899

Parity: even

Prime: No

Previous Prime: 1889

Next Prime: 1901

Digit Sum: 26

Digital Root: 8

Palindrome: No

Factorization: 2 × 13 × 73

Divisors: 1, 2, 13, 26, 73, 146, 949, 1898

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11101101010

Octal: 3552

Duodecimal: 1122

Hexadecimal: 76a

Square: 3602404

Square Root: 43.56604182158393

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

Coordination sequence for 3D uniform tiling formed by stacking parallel layers of the 3.12.12 2D tiling (cf. A250122). A299257
Greatest number of multisets that can be obtained by choosing a divisor of each part of an integer partition of n. A370808
Number of integer partitions of n whose first differences (assuming the last part is zero) are not unimodal. A332284
Generalized 23-gonal (or icositrigonal) numbers: m*(21·m - 19)/2 with m = 0, +1, -1, +2, -2, +3, -3, ... A303303
Number of partitions of n into at most 5 parts. A1401
Number of partitions of n in which the greatest part is 5. A26811
a(n) = ∑d∣n, n/d == 1 (mod 4) d2 - ∑d∣n, n/d == 3 (mod 4) d2. A50470
Number of representations of n as a sum of products of distinct pairs of positive integers, considered to be equivalent when terms or factors are reordered. A211856
Number of integer partitions y of n such that yi = yi+1 for all even i. A351003
a(n)=A089551(n)/2. A89558