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2,173

2,173 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
4
Digit sum
13
Digit product
42
Digital root
4
Palindrome
No
Bit width
12 bits
Reversed
3,712
Recamán's sequence
a(3,405) = 2,173
Square (n²)
4,721,929
Cube (n³)
10,260,751,717
Divisor count
4
σ(n) — sum of divisors
2,268
φ(n) — Euler's totient
2,080
Sum of prime factors
94

Primality

Prime factorization: 41 × 53

Nearest primes: 2,161 (−12) · 2,179 (+6)

Divisors & multiples

All divisors (4)
1 · 41 · 53 · 2173
Aliquot sum (sum of proper divisors): 95
Factor pairs (a × b = 2,173)
1 × 2173
41 × 53
First multiples
2,173 · 4,346 (double) · 6,519 · 8,692 · 10,865 · 13,038 · 15,211 · 17,384 · 19,557 · 21,730

Sums & aliquot sequence

As a sum of two squares: 18² + 43² = 27² + 38²
As consecutive integers: 1,086 + 1,087 33 + 34 + … + 73 15 + 16 + … + 67
Aliquot sequence: 2,173 95 25 6 6 — reaches a perfect number

Representations

In words
two thousand one hundred seventy-three
Ordinal
2173rd
Roman numeral
MMCLXXIII
Binary
100001111101
Octal
4175
Hexadecimal
0x87D
Base64
CH0=
One's complement
63,362 (16-bit)
In other bases
ternary (3) 2222111
quaternary (4) 201331
quinary (5) 32143
senary (6) 14021
septenary (7) 6223
nonary (9) 2874
undecimal (11) 16a6
duodecimal (12) 1311
tridecimal (13) cb2
tetradecimal (14) b13
pentadecimal (15) 99d

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹
Egyptian hieroglyphic
𓆼𓆼𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺
Greek (Milesian)
͵βρογʹ
Mayan (base 20)
𝋥·𝋨·𝋭
Chinese
二千一百七十三
Chinese (financial)
貳仟壹佰柒拾參
In other modern scripts
Eastern Arabic ٢١٧٣ Devanagari २१७३ Bengali ২১৭৩ Tamil ௨௧௭௩ Thai ๒๑๗๓ Tibetan ༢༡༧༣ Khmer ២១៧៣ Lao ໒໑໗໓ Burmese ၂၁၇၃

Digit at this position in famous constants

π — Pi (π)
Digit 2,173 = 9
e — Euler's number (e)
Digit 2,173 = 5
φ — Golden ratio (φ)
Digit 2,173 = 1
√2 — Pythagoras's (√2)
Digit 2,173 = 3
ln 2 — Natural log of 2
Digit 2,173 = 2
γ — Euler-Mascheroni (γ)
Digit 2,173 = 8

Also seen as

Unicode codepoint
Arabic Letter Alef With Attached Bottom Right Kasra And Dot Above
U+087D
Other letter (Lo)

UTF-8 encoding: E0 A1 BD (3 bytes).

Hex color
#00087D
RGB(0, 8, 125)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.8.125.

Address
0.0.8.125
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.8.125

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

Position in π

The digit sequence 2173 first appears in π at position 1,620 of the decimal expansion (the 1,620ordinal-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.