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80,001

80,001 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 Evil Number Flippable Harshad / Niven Recamán's Sequence

Properties

Parity
Odd
Digit count
5
Digit sum
9
Digit product
0
Digital root
9
Palindrome
No
Bit width
17 bits
Reversed
10,008
Flips to (rotate 180°)
10,008
Recamán's sequence
a(120,105) = 80,001
Square (n²)
6,400,160,001
Cube (n³)
512,019,200,240,001
Divisor count
8
σ(n) — sum of divisors
118,560
φ(n) — Euler's totient
53,316
Sum of prime factors
2,972

Primality

Prime factorization: 3 3 × 2963

Nearest primes: 79,999 (−2) · 80,021 (+20)

Divisors & multiples

All divisors (8)
1 · 3 · 9 · 27 · 2963 · 8889 · 26667 · 80001
Aliquot sum (sum of proper divisors): 38,559
Factor pairs (a × b = 80,001)
1 × 80001
3 × 26667
9 × 8889
27 × 2963
First multiples
80,001 · 160,002 (double) · 240,003 · 320,004 · 400,005 · 480,006 · 560,007 · 640,008 · 720,009 · 800,010

Sums & aliquot sequence

As consecutive integers: 40,000 + 40,001 26,666 + 26,667 + 26,668 13,331 + 13,332 + 13,333 + 13,334 + 13,335 + 13,336 8,885 + 8,886 + … + 8,893
Aliquot sequence: 80,001 38,559 12,857 1,927 89 1 0 — terminates at zero

Representations

In words
eighty thousand one
Ordinal
80001st
Binary
10011100010000001
Octal
234201
Hexadecimal
0x13881
Base64
ATiB
One's complement
4,294,887,294 (32-bit)
In other bases
ternary (3) 11001202000
quaternary (4) 103202001
quinary (5) 10030001
senary (6) 1414213
septenary (7) 452145
nonary (9) 131660
undecimal (11) 55119
duodecimal (12) 3a369
tridecimal (13) 2a54c
tetradecimal (14) 21225
pentadecimal (15) 18a86

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒁹𒁹 𒌋𒁹𒁹𒁹 𒌋𒌋𒁹
Egyptian hieroglyphic
𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓏺
Greek (Milesian)
͵παʹ
Mayan (base 20)
𝋪·𝋠·𝋠·𝋡
Chinese
八萬零一
Chinese (financial)
捌萬零壹
In other modern scripts
Eastern Arabic ٨٠٠٠١ Devanagari ८०००१ Bengali ৮০০০১ Tamil ௮௦௦௦௧ Thai ๘๐๐๐๑ Tibetan ༨༠༠༠༡ Khmer ៨០០០១ Lao ໘໐໐໐໑ Burmese ၈၀၀၀၁

Digit at this position in famous constants

π — Pi (π)
Digit 80,001 = 6
e — Euler's number (e)
Digit 80,001 = 4
φ — Golden ratio (φ)
Digit 80,001 = 3
√2 — Pythagoras's (√2)
Digit 80,001 = 7
ln 2 — Natural log of 2
Digit 80,001 = 4
γ — Euler-Mascheroni (γ)
Digit 80,001 = 6

Also seen as

Unicode codepoint
𓢁
Egyptian Hieroglyph-13881
U+13881
Other letter (Lo)

UTF-8 encoding: F0 93 A2 81 (4 bytes).

Hex color
#013881
RGB(1, 56, 129)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.1.56.129.

Address
0.1.56.129
Class
reserved
IPv4-mapped IPv6
::ffff:0.1.56.129

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

Position in π

The digit sequence 80001 first appears in π at position 80,764 of the decimal expansion (the 80,764ordinal-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.