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80,005

80,005 is a composite number, odd.

This number doesn't have a permanent NumberWiki page yet — what you see below is computed live. Pages get added to the permanent index when they're notable (years, primes, curated, etc.).
Arithmetic Number Deficient Number Odious Number Pernicious Number Recamán's Sequence Semiprime Smith Number Squarefree

Properties

Parity
Odd
Digit count
5
Digit sum
13
Digit product
0
Digital root
4
Palindrome
No
Bit width
17 bits
Reversed
50,008
Recamán's sequence
a(120,097) = 80,005
Square (n²)
6,400,800,025
Cube (n³)
512,096,006,000,125
Divisor count
4
σ(n) — sum of divisors
96,012
φ(n) — Euler's totient
64,000
Sum of prime factors
16,006

Primality

Prime factorization: 5 × 16001

Nearest primes: 79,999 (−6) · 80,021 (+16)

Divisors & multiples

All divisors (4)
1 · 5 · 16001 · 80005
Aliquot sum (sum of proper divisors): 16,007
Factor pairs (a × b = 80,005)
1 × 80005
5 × 16001
First multiples
80,005 · 160,010 (double) · 240,015 · 320,020 · 400,025 · 480,030 · 560,035 · 640,040 · 720,045 · 800,050

Sums & aliquot sequence

As a sum of two squares: 74² + 273² = 174² + 223²
As consecutive integers: 40,002 + 40,003 15,999 + 16,000 + 16,001 + 16,002 + 16,003 7,996 + 7,997 + … + 8,005
Aliquot sequence: 80,005 16,007 1 0 — terminates at zero

Representations

In words
eighty thousand five
Ordinal
80005th
Binary
10011100010000101
Octal
234205
Hexadecimal
0x13885
Base64
ATiF
One's complement
4,294,887,290 (32-bit)
In other bases
ternary (3) 11001202011
quaternary (4) 103202011
quinary (5) 10030010
senary (6) 1414221
septenary (7) 452152
nonary (9) 131664
undecimal (11) 55122
duodecimal (12) 3a371
tridecimal (13) 2a553
tetradecimal (14) 21229
pentadecimal (15) 18a8a

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒁹𒁹 𒌋𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵πεʹ
Mayan (base 20)
𝋪·𝋠·𝋠·𝋥
Chinese
八萬零五
Chinese (financial)
捌萬零伍
In other modern scripts
Eastern Arabic ٨٠٠٠٥ Devanagari ८०००५ Bengali ৮০০০৫ Tamil ௮௦௦௦௫ Thai ๘๐๐๐๕ Tibetan ༨༠༠༠༥ Khmer ៨០០០៥ Lao ໘໐໐໐໕ Burmese ၈၀၀၀၅

Digit at this position in famous constants

π — Pi (π)
Digit 80,005 = 2
e — Euler's number (e)
Digit 80,005 = 1
φ — Golden ratio (φ)
Digit 80,005 = 0
√2 — Pythagoras's (√2)
Digit 80,005 = 3
ln 2 — Natural log of 2
Digit 80,005 = 5
γ — Euler-Mascheroni (γ)
Digit 80,005 = 7

Also seen as

Unicode codepoint
𓢅
Egyptian Hieroglyph-13885
U+13885
Other letter (Lo)

UTF-8 encoding: F0 93 A2 85 (4 bytes).

Hex color
#013885
RGB(1, 56, 133)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.1.56.133.

Address
0.1.56.133
Class
reserved
IPv4-mapped IPv6
::ffff:0.1.56.133

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

Position in π

The digit sequence 80005 first appears in π at position 141,718 of the decimal expansion (the 141,718ordinal-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.