Properties of the Number -126025

One Hundred Twenty-Six Thousand Twenty-Five

Basics

Value: -126026 → -126025 → -126024

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 5 ² × 71 ²

Divisors: 1, 5, 25, 71, 355, 1775, 5041, 25205, 126025

Polygonal

Triangular: No

Square: Yes

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11110110001001001

Octal: -366111

Duodecimal: -60B21

Hexadecimal: -1ec49

Square: 15882300625

Square Root: 355

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

Number of ordered factorizations with 3 levels of parentheses indexed by prime signatures: A050358(A025487(n)). A50359

a(n) = (10·n + 5)². A17330

a(n) = index of first n in A262680; positions of records in A262680. A262687

a(n) = (p1 + p2)/36 such that p1 >= 5 and p2 = p1 + 2 are twin primes and p1 + p2 is a k-th power with k > 1. A330978

Squares of tribonacci numbers A000213. A141583

Expansion of e.g.f.: exp(16·x/(1-x)) / sqrt(1-x²). A202878

Perfect powers equal to the sum of 6 factorial numbers. A227647

a(n) is the least k such that φ(k) + d(k) = A357916(n), where φ(k) = A000010(k) is Euler's totient function, and d(k) = A000005(k) is the number of divisors of k. A357917

a(n) = (11·n + 3)². A17426

a(n) = (12·n + 7)². A17606