Properties of the Number 940

Nine Hundred Forty

Basics

Value: 939 → 940 → 941

Parity: even

Prime: No

Previous Prime: 937

Next Prime: 941

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 2 ² × 5 × 47

Divisors: 1, 2, 4, 5, 10, 20, 47, 94, 188, 235

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1110101100

Octal: 1654

Duodecimal: 664

Hexadecimal: 3ac

Square: 883600

Square Root: 30.659419433511783

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

Sum of totient function: a(n) = ∑_k=1..n φ(k), cf. A000010. A2088

Number of integer partitions of n whose smallest part is equal to the number of parts. A6141

Coordination sequence for "tcd" 3D uniform tiling. A299287

a(n) = n*(n + 7)/2. A55999

Multiples of 20. A8602

Let S(n) = set of divisors of n, excluding n; sequence gives n such that there is a unique subset of S(n) that sums to n. A64771

Number of "cubic partitions" of n: expansion of ∏_k>0 1/((1-x^2k)²*(1-x^2k-1)) in powers of x. A2513

Sum of squares of four consecutive primes. A133524

Numbers m such that there are precisely 11 groups of order m. A249554

Discriminants of totally real cubic fields. A6832