Properties of the Number 40247

Forty Thousand Two Hundred Forty-Seven

Basics

Value: 40246 → 40247 → 40248

Parity: odd

Prime: No

Previous Prime: 40241

Next Prime: 40253

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 167 × 241

Divisors: 1, 167, 241, 40247

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1001110100110111

Octal: 116467

Duodecimal: 1B35B

Hexadecimal: 9d37

Square: 1619821009

Square Root: 200.61654966627256

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

Positions of records in A194943. A362850

Integer part of log(nⁿ)^{1 + log(log(1 + n})). A62479

Nearest integer to log(nⁿ)^{1 + log(log(1 + n})). A62480

Triangle read by rows: numerators of coefficients of the Hirzebruch L-polynomials L_n expressing the signature of a 4n-dimensional manifold in terms of its Pontrjagin numbers (as in Hirzebruch Signature Theorem). A237111

Numbers k where k² is an anagram of (k+2)². A261749

Number of partitions of n into parts not of the form 25k, 25k+2 or 25k-2. Also number of partitions with 1 part of size 1 and differences between parts at distance 11 are greater than 1. A36001

Composite evil numbers (A001969) having no proper evil divisors. A217790

a(n) = smallest integer m for which there is an integer k, with 0 < k < m and gcd(k,m)=1, such that the arithmetic progression m+k, 2·m+k, ..., n·m+k contains only composite numbers. A352185

Continued fraction for sqrt(264). A40247

Number of nX4 0..1 arrays with every element equal to 1, 3, 4, 5 or 6 king-move adjacent elements, with upper left element zero. A298450