Properties of the Number 1942

One Thousand Nine Hundred Forty-Two

Basics

Value: 1941 → 1942 → 1943

Parity: even

Prime: No

Previous Prime: 1933

Next Prime: 1949

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 × 971

Divisors: 1, 2, 971, 1942

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 11110010110

Octal: 3626

Duodecimal: 115A

Hexadecimal: 796

Square: 3771364

Square Root: 44.06812907306141

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

Numbers k for which 10k+1, 10k+3, 10k+7 and 10k+9 are primes. A7811

Number of integer partitions of n whose length cannot be written as a nonnegative linear combination of the distinct parts. A367219

Number of integer compositions of n with all distinct even-indexed parts and all distinct odd-indexed parts. A351018

Number of integer compositions of n whose leaders of strictly decreasing runs are identical. A374760

a(n) = n² + 6. A114949

Semiprimes sandwiched between semiprimes. A86005

Analog of A121805, but starting with 4. A366492

Smallest number representable as the sum of 3 triangular numbers in exactly n ways. A61262

a(n) = prime(n+3)*prime(n) - prime(n+1)*prime(n+2). A117301

Numbers k that are the products of two distinct primes such that 2·k-1, 4·k-3 and 8·k-7 are also products of two distinct primes. A177212