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Number

55,009

55,009 is a prime, odd.

Arithmetic Number Deficient Number Odious Number Prime Pythagorean Prime Recamán's Sequence Squarefree

Properties

Parity
Odd
Digit count
5
Digit sum
19
Digit product
0
Digital root
1
Palindrome
No
Bit width
16 bits
Reversed
90,055
Recamán's sequence
a(141,537) = 55,009
Square (n²)
3,025,990,081
Cube (n³)
166,456,688,365,729
Divisor count
2
σ(n) — sum of divisors
55,010
φ(n) — Euler's totient
55,008

Primality

55,009 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)
1 · 55009
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 55,009)
1 × 55009
First multiples
55,009 · 110,018 (double) · 165,027 · 220,036 · 275,045 · 330,054 · 385,063 · 440,072 · 495,081 · 550,090

Sums & aliquot sequence

As a sum of two squares: 55² + 228²
As consecutive integers: 27,504 + 27,505

Representations

In words
fifty-five thousand nine
Ordinal
55009th
Binary
1101011011100001
Octal
153341
Hexadecimal
0xD6E1
Base64
1uE=
One's complement
10,526 (16-bit)
In other bases
ternary (3) 2210110101
quaternary (4) 31123201
quinary (5) 3230014
senary (6) 1102401
septenary (7) 316243
nonary (9) 83411
undecimal (11) 38369
duodecimal (12) 27a01
tridecimal (13) 1c066
tetradecimal (14) 16093
pentadecimal (15) 11474

Historical numeral systems

Babylonian (base 60)
𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵νεθʹ
Mayan (base 20)
𝋦·𝋱·𝋪·𝋩
Chinese
五萬五千零九
Chinese (financial)
伍萬伍仟零玖
In other modern scripts
Eastern Arabic ٥٥٠٠٩ Devanagari ५५००९ Bengali ৫৫০০৯ Tamil ௫௫௦௦௯ Thai ๕๕๐๐๙ Tibetan ༥༥༠༠༩ Khmer ៥៥០០៩ Lao ໕໕໐໐໙ Burmese ၅၅၀၀၉

Digit at this position in famous constants

π — Pi (π)
Digit 55,009 = 1
e — Euler's number (e)
Digit 55,009 = 7
φ — Golden ratio (φ)
Digit 55,009 = 0
√2 — Pythagoras's (√2)
Digit 55,009 = 2
ln 2 — Natural log of 2
Digit 55,009 = 8
γ — Euler-Mascheroni (γ)
Digit 55,009 = 0

Also seen as

Prime neighborhood

Adjacent primes:

  • Previous prime: 55,001 (gap of 8)
  • Next prime: 55,021 (gap of 12)
Unicode codepoint
Hangul Syllable Hweog
U+D6E1
Other letter (Lo)

UTF-8 encoding: ED 9B A1 (3 bytes).

Hex color
#00D6E1
RGB(0, 214, 225)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.214.225.

Address
0.0.214.225
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.214.225

Unspecified address (0.0.0.0/8) — "this network" placeholder.

Position in π

The digit sequence 55009 first appears in π at position 251,444 of the decimal expansion (the 251,444ordinal-suffix:th digit after the integer 3).

Search range: the first 1,000,000 fractional digits of π. Any 6-digit-or-shorter string is virtually guaranteed to appear in there — the more interesting signal is the position.