Properties of the Number 42999

Forty-Two Thousand Nine Hundred Ninety-Nine

Basics

Value: 42998 → 42999 → 43000

Parity: odd

Prime: No

Previous Prime: 42989

Next Prime: 43003

Digit Sum: 33

Digital Root: 6

Palindrome: No

Factorization: 3 × 11 × 1303

Divisors: 1, 3, 11, 33, 1303, 3909, 14333, 42999

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 1010011111110111

Octal: 123767

Duodecimal: 20A73

Hexadecimal: a7f7

Square: 1848914001

Square Root: 207.3620023051475

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

Smallest multiple of n whose digits sum to n. A2998

Smallest proper multiple of n with digit sum n. A69035

Smallest k > 0 with gcd(k, rev(k)) = n, where rev(k) is digit reversal of k and with sum of digits of k = n, or 0 if no such k exists. A333666

The number of solutions to φ(x) = φ(x+1) below 10ⁿ, where φ(x) is the Euler totient function. A300285

Smallest multiple of n with two or more digits, none of them zeros, whose digit sum equals n, or 0 if no such multiple exists. A77754

a(n) is the smallest number which is divisible by n, is not equal to n and its digital sum is also divisible by n. A163502

Numbers k such that φ(k) = φ(k+1). A1274

Primes congruent to {2, 3, 5} (mod 8). A42999