Properties of the Number 9641

Nine Thousand Six Hundred Forty-One

Basics

Value: 9640 → 9641 → 9642

Parity: odd

Prime: No

Previous Prime: 9631

Next Prime: 9643

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 31 × 311

Divisors: 1, 31, 311, 9641

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 10010110101001

Octal: 22651

Duodecimal: 56B5

Hexadecimal: 25a9

Square: 92948881

Square Root: 98.18859404228171

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

Composite numbers such that the square mean of their prime factors is a nonprime integer (where the prime factors are taken with multiplicity and the square mean of c and d is sqrt((c²+d²)/2)). A134602

Least number k > 1 (that is not the power of prime p) such that k divides (p+1)^k-1, where p = prime(n). A128356

Positive numbers of the form x⁴ - 6·x² * y² + y⁴ (where x,y are integers). A135789

Largest number not the sum of distinct n-th-order polygonal numbers. A7419

a(n) = 10·n²+n. A55437

Number of integer partitions of n with at least two adjacent parts of quotient 2. A350846

Nonprime numbers k such that sum of aliquot divisors of k is a cube. A48698

Terms of A121707 not in A267999. A306097

Least number k > n such that k² divides n^k - 1. A128452

Composite numbers n such that k! == 1 (mod n) for some k > 2. A49048