Properties of the Number 22240

Twenty-Two Thousand Two Hundred Forty

Basics

Value: 22239 → 22240 → 22241

Parity: even

Prime: No

Previous Prime: 22229

Next Prime: 22247

Digit Sum: 10

Digital Root: 1

Palindrome: No

Factorization: 2 ⁵ × 5 × 139

Divisors: 1, 2, 4, 5, 8, 10, 16, 20, 32, 40

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 101011011100000

Octal: 53340

Duodecimal: 10A54

Hexadecimal: 56e0

Square: 494617600

Square Root: 149.13081505845798

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

a(n) = 14·n² - 4·n. A195023

∑_k<=n (σ(k)²), where σ(k) denotes the sum of the divisors of k A000203. A72379

E.g.f.: ∏_k>=1 (1 + tanh(x^k)). A270664

Rounded sums of the non-integer cube roots of n, as partitioned by the integer roots: round(∑_{j=n³+1..(n+1)³-1} j^1/3). A248575

Consecutive states of the linear congruential pseudo-random number generator for the Texas Instruments TI99 when started at 1. A384221

Number of partitions of prime(n) into distinct parts not larger than prime(n-1). A318604

Bond series for first perpendicular moment of 4.8 (bathroom tile) lattice. A120556

The numbers k for which gcd(k, φ(k)) + gcd(k, τ(k)) = gcd(k, σ(k)). A326416

Number of 3-time self-crossing partitions on n nodes. A287222

Amicable numbers. A63990