Properties of the Number 2190

Two Thousand One Hundred Ninety

Basics

Value: 2189 → 2190 → 2191

Parity: even

Prime: No

Previous Prime: 2179

Next Prime: 2203

Digit Sum: 12

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 5 × 73

Divisors: 1, 2, 3, 5, 6, 10, 15, 30, 73, 146

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100010001110

Octal: 4216

Duodecimal: 1326

Hexadecimal: 88e

Square: 4796100

Square Root: 46.79743582719036

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

Numbers that are the sum of 6 positive 6th powers. A3362

Numbers that are the sum of 4 positive 7th powers. A3371

Number of regions that the line segments in A091908(n) cut the equilateral triangle into. A92098

Least k such that ∑_i=1..k (prime(i) + prime(i+2) - 2·prime(i+1)) = 2n + 1. A73051

Numbers n such that the decimal expansions of both n and n² have 0 as smallest digit and 9 as largest digit. A256709

Number of integer partitions of n whose weak run-sums cover an initial interval of nonnegative integers. A353863

Number of primes < prime(n)². A879

Record gaps between twin primes. A113274

Convolution of natural numbers >= 2 and Fibonacci numbers. A23548

Numbers k such that the k-th maximal run of composite numbers has length different from all prior maximal runs. Sorted positions of first appearances in A176246 (or A046933 shifted). A373400