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Number

28,027

28,027 is a prime, odd.

Arithmetic Number Chen Prime Cousin Prime Deficient Number Odious Number Pernicious Number Prime Recamán's Sequence Squarefree

Properties

Parity
Odd
Digit count
5
Digit sum
19
Digit product
0
Digital root
1
Palindrome
No
Bit width
15 bits
Reversed
72,082
Recamán's sequence
a(34,377) = 28,027
Square (n²)
785,512,729
Cube (n³)
22,015,565,255,683
Divisor count
2
σ(n) — sum of divisors
28,028
φ(n) — Euler's totient
28,026

Primality

28,027 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)
1 · 28027
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 28,027)
1 × 28027
First multiples
28,027 · 56,054 (double) · 84,081 · 112,108 · 140,135 · 168,162 · 196,189 · 224,216 · 252,243 · 280,270

Sums & aliquot sequence

As consecutive integers: 14,013 + 14,014

Representations

In words
twenty-eight thousand twenty-seven
Ordinal
28027th
Binary
110110101111011
Octal
66573
Hexadecimal
0x6D7B
Base64
bXs=
One's complement
37,508 (16-bit)
In other bases
ternary (3) 1102110001
quaternary (4) 12311323
quinary (5) 1344102
senary (6) 333431
septenary (7) 144466
nonary (9) 42401
undecimal (11) 1a06a
duodecimal (12) 14277
tridecimal (13) c9ac
tetradecimal (14) a2dd
pentadecimal (15) 8487

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵κηκζʹ
Mayan (base 20)
𝋣·𝋪·𝋡·𝋧
Chinese
二萬八千零二十七
Chinese (financial)
貳萬捌仟零貳拾柒
In other modern scripts
Eastern Arabic ٢٨٠٢٧ Devanagari २८०२७ Bengali ২৮০২৭ Tamil ௨௮௦௨௭ Thai ๒๘๐๒๗ Tibetan ༢༨༠༢༧ Khmer ២៨០២៧ Lao ໒໘໐໒໗ Burmese ၂၈၀၂၇

Digit at this position in famous constants

π — Pi (π)
Digit 28,027 = 1
e — Euler's number (e)
Digit 28,027 = 7
φ — Golden ratio (φ)
Digit 28,027 = 7
√2 — Pythagoras's (√2)
Digit 28,027 = 9
ln 2 — Natural log of 2
Digit 28,027 = 9
γ — Euler-Mascheroni (γ)
Digit 28,027 = 8

Also seen as

Prime neighborhood

Adjacent primes:

  • Previous prime: 28,019 (gap of 8)
  • Next prime: 28,031 (gap of 4)

Pair status: cousin with 28031.

Unicode codepoint
CJK Unified Ideograph-6D7B
U+6D7B
Other letter (Lo)

UTF-8 encoding: E6 B5 BB (3 bytes).

Hex color
#006D7B
RGB(0, 109, 123)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.109.123.

Address
0.0.109.123
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.109.123

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

Position in π

The digit sequence 28027 first appears in π at position 90,362 of the decimal expansion (the 90,362ordinal-suffix:nd 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.