Properties of the Number -212401

Two Hundred Twelve Thousand Four Hundred One

Basics

Value: -212402 → -212401 → -212400

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 10

Digital Root: 1

Palindrome: No

Factorization: 7 × 19 × 1597

Divisors: 1, 7, 19, 133, 1597, 11179, 30343, 212401

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110011110110110001

Octal: -636661

Duodecimal: -A2B01

Hexadecimal: -33db1

Square: 45114184801

Square Root: 460.86982977843104

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

Numbers m such that the factorizations of m..m+5 have the same number of primes (including multiplicities). A45942

Denominators of continued fraction convergents to sqrt(688). A42323

Denominators of continued fraction convergents to sqrt(172). A41317

a(n) = floor((product of first n triangular numbers)/(sum of first n factorials)). A90902

Numbers k such that k, k+1, ..., k+5 all have 3 prime factors (counted with multiplicity). A375239

Numbers k such that (2^k-1)^k == 1 (mod (2^k+1)*k²) and 2^k-1 ≠ 1 (mod k). A384148