Properties of the Number 2146

Two Thousand One Hundred Forty-Six

Basics

Value: 2145 → 2146 → 2147

Parity: even

Prime: No

Previous Prime: 2143

Next Prime: 2153

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 2 × 29 × 37

Divisors: 1, 2, 29, 37, 58, 74, 1073, 2146

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100001100010

Octal: 4142

Duodecimal: 12AA

Hexadecimal: 862

Square: 4605316

Square Root: 46.32493928760188

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 algebraically independent elements of degree n in the algebra of symmetric polynomials in noncommuting variables. A74664

a(n) = (3·n² - n - 2)/2. A115067

a(n) = 2·n² - n + 1. A130883

Second heptagonal numbers: a(n) = n*(5·n+3)/2. A147875

G.f. A(x) satisfies A(x) = (1 + x·A(x))*(1 + x³*A(x)³). A198951

Smallest palindrome greater than n in bases n and n+1. A48268

Bernoulli number B_n has denominator 354. A255684

Number of non-vanishing Feynman diagrams of order 2n for the electron or the photon propagators in quantum electrodynamics. A5411

Number of strict integer partitions of n whose length (number of parts) is not equal to the sum of any subset. A367215

a(n) = 7ⁿ-4ⁿ+1ⁿ. A155628