Properties of the Number 42125

Forty-Two Thousand One Hundred Twenty-Five

Basics

Value: 42124 → 42125 → 42126

Parity: odd

Prime: No

Previous Prime: 42101

Next Prime: 42131

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 5 ³ × 337

Divisors: 1, 5, 25, 125, 337, 1685, 8425, 42125

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010010010001101

Octal: 122215

Duodecimal: 20465

Hexadecimal: a48d

Square: 1774515625

Square Root: 205.24375751773792

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 e.g.f. 1/(1 - sin(4·x))^1/4. A144015

Group successively larger prime numbers so that the sum of the n-th group is a multiple of n. Sequence gives the sum for each group. A74128

Array read by ascending antidiagonals: A(n, k) = k! * [x^k] (1 - sin(n·x))^-1/n for n > 0, A(0, k) = 1. A385896

Number of composite numbers between exponents of successive Mersenne primes. A157894

a(n) = 16·n⁵ + 70·n⁴ + 105·n³ + 65·n² + 15·n + 1. A385898

Denominators of continued fraction convergents to sqrt(587). A42125