Properties of the Number -38226

Thirty-Eight Thousand Two Hundred Twenty-Six

Basics

Value: -38227 → -38226 → -38225

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 23 × 277

Divisors: 1, 2, 3, 6, 23, 46, 69, 138, 277, 554

Polygonal

Triangular: Yes

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1001010101010010

Octal: -112522

Duodecimal: -1A156

Hexadecimal: -9552

Square: 1461227076

Square Root: 195.5147053292923

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

Doubly triangular numbers: a(n) = n*(n+1)*(n²+n+2)/8. A2817

Triangular numbers representable as x·y+x+y such that·and y are triangular numbers, x>=y>1. A259746

Number of representations of n as a sum of products of pairs of positive integers, n = ∑_k=1..m i_k*j_k with i_k<=j_k, i_k<=i_k+1, j_k<=j_k+1, i_k*j_k<=i_k+1*j_k+1. A212214

Numbers n such that 30·n+{1,7,11,13,17,19,29} are all prime. A100423

Triangular numbers representable as x·y+x+y such that·and y are triangular numbers, x>=y>0. A259745

Triangular numbers with sum of digits = 21. A68131

a(n) = 49*(n*(n+1)/2) + 6. A61792

a(1) = 0, then smallest triangular number such that a(n+1)- a(n) is a palindrome. A75057

Numbers n such that 30·n+7, 30·n+11, 30·n+13, 30·n+17, 30·n+19 are consecutive primes. A89157

Triangular numbers for which the sum of the digits is an octagonal number. A117523