number.wiki
Number

42,509

42,509 is a prime, odd.

Deficient Number Prime Squarefree

Properties

Parity
Odd
Digit count
5
Digit sum
20
Digital root
2
Palindrome
No
Divisor count
2
σ(n) — sum of divisors
42,510

Primality

42,509 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)
1 · 42509
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 42,509)
1 × 42509
First multiples
42,509 · 85,018 · 127,527 · 170,036 · 212,545 · 255,054 · 297,563 · 340,072 · 382,581 · 425,090

Representations

In words
forty-two thousand five hundred nine
Ordinal
42509th
Binary
1010011000001101
Octal
123015
Hexadecimal
A60D

Also seen as

Prime neighborhood

Adjacent primes:

  • Previous prime: 42,499 (gap of 10)
  • Next prime: 42,533 (gap of 24)
Unicode codepoint
U+A60D
Other punctuation (Po)

UTF-8 encoding: EA 98 8D (3 bytes).

Hex color
#00A60D
RGB(0, 166, 13)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.166.13.