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Properties of the Number 11898

Eleven Thousand Eight Hundred Ninety-Eight

Basics

Value: 11897 → 11898 → 11899

Parity: even

Prime: No

Previous Prime: 11897

Next Prime: 11903

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 2 × 661

Divisors: 1, 2, 3, 6, 9, 18, 661, 1322, 1983, 3966

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10111001111010

Octal: 27172

Duodecimal: 6A76

Hexadecimal: 2e7a

Square: 141562404

Square Root: 109.07795377618706

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

Multiples of 18 containing a 18 in their decimal representation. A121038
Total number of smallest parts in all partitions of n into odd parts. A92268
Palindromic numbers in bases 5 and 8 written in base 10. A259383
Number of n-step walks on hexagonal lattice (no points repeated, no adjacent points unless consecutive in path). A174313
G.f. satisfies A(x) = 1 + x·A(x)4 / (1 + x·A(x)4). A364865
Positions where A109890(n) = ∑i = 1..n-1 A109890(i). A111315
Triangle, rows = inverse binomial transforms of A117938 columns. A117937
Indices where the cumulative sum of cos(2k+1)2k+1 reaches a record low value. A389560
Numbers m such that there is a k with 2m/(m+1) < binomial(m,k) <= 2m/m and k < m/2. A229485
Trisection of A107926: The least number k such that there are primes p and q with p - q = 6·n+4, p + q = k, and p the least such prime >= k/2. A234956