Properties of the Number -3725

Seven Hundred Twenty-Five

Basics

Value: -3726 → -3725 → -3724

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 5 ² × 149

Divisors: 1, 5, 25, 149, 745, 3725

Polygonal

Triangular: No

Square: No

Pentagonal: Yes

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -111010001101

Octal: -7215

Duodecimal: -21A5

Hexadecimal: -e8d

Square: 13875625

Square Root: 61.032778078668514

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

Expansion of 1/(1 - 5·x + 7·x²). A99450

E.g.f. satisfies A(x) = exp(x³ + x / A(x)). A362737

Alternating row sums of the Sheffer triangle S2[3,2] given by A225466. A284865

a(n) = 4*(n+1)*n + 5. A78370

Partial sums of A000009 (partitions into distinct parts). A36469

Pentagonal numbers with even index. A49452

Number of 2's in the last section of the set of partitions of n. A182712

Sum of first k numbers in column k of the natural number array A000027; by antidiagonals. A185787

a(n) = ∑_k=0..n (-1)^n-k*A000041(k). A87787

The number of regions formed when every pair of n points, placed at the vertices of a regular n-gon, are connected by a circle and where the points lie at the ends of the circle's diameter. A358782