Properties of the Number 10028

Ten Thousand Twenty-Eight

Basics

Value: 10027 → 10028 → 10029

Parity: even

Prime: No

Previous Prime: 10009

Next Prime: 10037

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 2 ² × 23 × 109

Divisors: 1, 2, 4, 23, 46, 92, 109, 218, 436, 2507

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10011100101100

Octal: 23454

Duodecimal: 5978

Hexadecimal: 272c

Square: 100560784

Square Root: 100.13990213696037

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 maximal subsets of {1..n} such that it is possible to choose a different prime factor of each element. A370585

Numbers n such that Bernoulli number B_n has denominator 1410. A272369

10·n analog to Keith numbers. A282765

Number of times the digit 6 appears in the first 10ⁿ digits of π. A99297

T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with every 2X2 subblock commuting with each of its horizontal and vertical 2X2 subblock neighbors. A186472

Number of times the digit 7 appears in the first 10ⁿ digits of Catalan's constant. A224816

Expansion of ∑_k>0 (1/(1 - k·x^k)⁴ - 1). A363640

Relative of Hofstadter Q-sequence: a(n) = max(0, n+10001) for n <= 0; a(n) = a(n-a(n-1)) + a(n-a(n-2)) + a(n-a(n-3)) + a(n-a(n-4)) for n > 0. A283890

Relative of Hofstadter Q-sequence. A283891

Relative of Hofstadter Q-sequence. A283892