Properties of the Number -102245

One Hundred Two Thousand Two Hundred Forty-Five

Basics

Value: -102246 → -102245 → -102244

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 5 × 11 ² × 13 ²

Divisors: 1, 5, 11, 13, 55, 65, 121, 143, 169, 605

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -11000111101100101

Octal: -307545

Duodecimal: -4B205

Hexadecimal: -18f65

Square: 10454040025

Square Root: 319.7577207824699

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

Triangle where g.f. C = C(x,m) and related series S = S(x,m) and D = D(x,m) satisfy S = x·C*D, C = 1 + x·S*D, and D = 1 + m·x*S·C, as read by rows of coefficients T(n,k) of x^2·n*m^k in C(x,m) for n>=0, k=0..n. A278881

Triangle where g.f. D = D(x,m) and related series S = S(x,m) and C = C(x,m) satisfy S = x·C*D, C = 1 + x·S*D, and D = 1 + m·x*S·C, as read by rows of coefficients T(n,k) of x^2·n*m^k in C(x,m) for n>=1, k=0..n. A278882

Odd numbers k such that k divides A005940(k). A364545

Numbers n such that both n and n squared contain exactly the same digits, and n is not divisible by 10. A258231

Numerator of J(n) = A000356(n)/A000309(n) (average number of 4-colorings of rank 0 in a rooted nonseparable map which is trivalent and has 2n nodes). A97872