Properties of the Number 74025

Seventy-Four Thousand Twenty-Five

Basics

Value: 74024 → 74025 → 74026

Parity: odd

Prime: No

Previous Prime: 74021

Next Prime: 74027

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 5 ² × 7 × 47

Divisors: 1, 3, 5, 7, 9, 15, 21, 25, 35, 45

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10010000100101001

Octal: 220451

Duodecimal: 36A09

Hexadecimal: 12129

Square: 5479700625

Square Root: 272.0753572082558

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 read by rows: T(n,k) is the number of permutations of an n-set having k cycles of size > 1 (0<=k<=floor(n/2)). A136394

Numbers k such that 4^k - 2^k - 1 is prime. A98845

Numbers k such that 4·k-1, 8·k-1, 16·k-1 and 32·k-1 are all primes. A101794

Numbers k such that 4·k-1, 8·k-1, 16·k-1, 32·k-1 and 64·k-1 are all primes. A101994

Nonnegative values·of solutions (x, y) to the Diophantine equation x² + (x+127)² = y². A129992

Numbers that are divisible by the squares of two distinct primes and whose arithmetic derivative (A003415) is a squarefree number of the form 4k+2. A368697

Number of permutations of [n] having exactly four nontrivial cycles. A289952

Solutions y of the Mordell equation y² = x³ - 3a² + 1 for a = 0,1,2, ... (solutions·are given by the sequence A000466). A173202

Expansion of log(1+x)*cos(sinh(x)). A9407

Number of walks within N² (the first quadrant of Z²) starting at (0,0) and consisting of n steps taken from {(-1, 1), (-1, 0), (1, -1), (1, 0), (1, 1)}. A151308