Properties of the Number -220500

Two Hundred Twenty Thousand Five Hundred

Basics

Value: -220501 → -220500 → -220499

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 9

Digital Root: 9

Palindrome: No

Factorization: 2 ² × 3 ² × 5 ³ × 7 ²

Divisors: 1, 2, 3, 4, 5, 6, 7, 9, 10, 12

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4938 Try Today's Challenge

Representations

Binary: -110101110101010100

Octal: -656524

Duodecimal: -A7730

Hexadecimal: -35d54

Square: 48620250000

Square Root: 469.5742752749558

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

Triangle of coefficients of square of Hermite polynomials divided by 2ⁿ with argument sqrt(x/2). A111595

T(n, k) = [x^k] ∑_k=0..n Stirling2(n, k)*RisingFactorial(x, k), triangle read by rows, for n >= 0 and 0 <= k <= n. A129062

Matrix product of Stirling2-triangle A008277(n,k) and unsigned Stirling1-triangle |A008275(n,k)|. A79641

Array read by antidiagonals: T(n,k) = number of rooted 2-dimensional polyominoes with k cells, the cells being regular n-gons, with no symmetries removed. A94166

Numbers with prime factorization p²*q²*r²*s³ where p, q, r, and s are distinct primes. A190382

a(n) is the smallest integer that has exactly n divisors from A333369. A355771

a(n) = n²*sigma₂(n). A386745

OU-σ multiperfect numbers. A91321

Partition number array, called M31(5), related to A049353(n,m)= |S1(5;n,m)| (generalized Stirling triangle). A144355

Numbers having exactly four non-unitary prime factors. A338541