Properties of the Number -140185

One Hundred Forty Thousand One Hundred Eighty-Five

Basics

Value: -140186 → -140185 → -140184

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 5 × 23 ² × 53

Divisors: 1, 5, 23, 53, 115, 265, 529, 1219, 2645, 6095

Polygonal

Triangular: Yes

Square: No

Pentagonal: No

Hexagonal: Yes

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100010001110011001

Octal: -421631

Duodecimal: -69161

Hexadecimal: -22399

Square: 19651834225

Square Root: 374.41287371029324

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) = n²*(n² + 1)/2. A37270

Number of 2 X 2 matrices with all terms in {0,1,...,n} and even trace. A210378

Row sums of the triangle A045975. A204558

Triangular numbers whose reverse is prime. A66751

The terms of A073215 (sums of two powers of 23) divided by 2. A72822

Triangular numbers which are sums of 5 consecutive primes. A173421

Number of distinct integers of the form (xⁿ + yⁿ) mod n⁴. A366420

a(n) = (n² + (n+1)²)*(n² + (n+1)² + 2·n*(n+1)). A272850

Sequence of distinct least triangular numbers such that the arithmetic mean of the first n terms is also a triangular number. Initial term is 0. A236415

a(n) = A000217(A000217(n)+1). A267707