Properties of the Number 16020

Sixteen Thousand Twenty

Basics

Value: 16019 → 16020 → 16021

Parity: even

Prime: No

Previous Prime: 16007

Next Prime: 16033

Digit Sum: 9

Digital Root: 9

Palindrome: No

Factorization: 2 ² × 3 ² × 5 × 89

Divisors: 1, 2, 3, 4, 5, 6, 9, 10, 12, 15

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 11111010010100

Octal: 37224

Duodecimal: 9330

Hexadecimal: 3e94

Square: 256640400

Square Root: 126.57013865837392

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) = lcm(p-1, p+1) where p is the n-th prime. A84921

Let p = A002145(n) be the n-th prime == 3 (mod 4); a(n) is the multiplicative order of 2+-i modulo p in Gaussian integers. A385165

Split positive integers into extending even groups and sum: 1+2, 3+4+5+6, 7+8+9+10+11+12, 13+14+15+16+17+18+19+20, ... A61317

Row sums of the triangular array A246694. A246695

a(n) = (prime(n)² - 1)/2 for n >= 2. A216244

Triangle of numbers obtained from the partition array A134274. A134275

Long leg of the unique primitive Pythagorean triple whose inradius is A000045(n) and such that its long leg and its hypotenuse are consecutive natural numbers. A382608

Square array T(k,n) by antidiagonals, where T(k,n) is number of ways of placing n identifiable nonnegative intervals with a total of exactly k starting and/or finishing points. A59515

12 times pentagonal numbers: a(n) = 6·n*(3·n-1). A153792

Long legs of the only primitive Pythagorean triple whose inradius is the n-th prime and whose short leg is an odd number. A367573