Properties of the Number 20012

Twenty Thousand Twelve

Basics

Value: 20011 → 20012 → 20013

Parity: even

Prime: No

Previous Prime: 20011

Next Prime: 20021

Digit Sum: 5

Digital Root: 5

Palindrome: No

Factorization: 2 ² × 5003

Divisors: 1, 2, 4, 5003, 10006, 20012

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 100111000101100

Octal: 47054

Duodecimal: B6B8

Hexadecimal: 4e2c

Square: 400480144

Square Root: 141.46377628212815

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

Triangular matrix T, read by rows, that satisfies: SHIFT_LEFT(column 0 of T^p) = p*(column p+2 of T), or [T^p](m,0) = p·T(p+m,p+2) for all m>=1 and p>=-2. A111536

Primes in ternary. A1363

Imaginary part of the Gaussian multiperfect number associated with the real part A100884. A100885

Number of even-length integer partitions of n with integer alternating product. A347704

Primes of form 4k+3 written in base 3. A72805

Expansion of e.g.f. ( ∏_k>0 1/(1 - x^k/k) )^1/(1-x). A356408

Lexicographically earliest strictly increasing base 3 autovarious sequence: a(n) = number of distinct a(k) mod 3ⁿ (written in base 3). A37091

In the list of divisors of n (in base 3), each digit 0-2 appears equally often. A45811

Total height of all (unlabeled) rooted identity trees with n vertices. A291559

Numbers 3·n + 2 written in base 3. A190642