number.wiki
Number

4,129

4,129 is a prime, odd.

Cousin Prime Deficient Number Prime Squarefree Twin Prime

Properties

Parity
Odd
Digit count
4
Digit sum
16
Digital root
7
Palindrome
No
Divisor count
2
σ(n) — sum of divisors
4,130

Primality

4,129 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)
1 · 4129
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 4,129)
1 × 4129
First multiples
4,129 · 8,258 · 12,387 · 16,516 · 20,645 · 24,774 · 28,903 · 33,032 · 37,161 · 41,290

Representations

In words
four thousand one hundred twenty-nine
Ordinal
4129th
Binary
1000000100001
Octal
10041
Hexadecimal
1021

Also seen as

Prime neighborhood

Adjacent primes:

  • Previous prime: 4,127 (gap of 2)
  • Next prime: 4,133 (gap of 4)

Pair status: twin with 4127, cousin with 4133.

Unicode codepoint
U+1021
Other letter (Lo)

UTF-8 encoding: E1 80 A1 (3 bytes).

Hex color
#001021
RGB(0, 16, 33)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.16.33.

Possible US bank routing number

This passes the ABA routing number checksum and matches the Federal Reserve numbering scheme.

Routing number
000004129
Federal Reserve
United States Government

Banks operate many routing numbers per state and division; an unmatched checksum-valid number can still be a real RTN at a smaller institution.