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173,842

173,842 is a composite number, even.

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.).

173,842 (one hundred seventy-three thousand eight hundred forty-two) is an even 6-digit number. It is a composite number with 8 divisors, and factors as 2 × 17 × 5,113. Written other ways, in hexadecimal, 0x2A712.

Cube-Free Deficient Number Evil Number Recamán's Sequence Sphenic Number Squarefree

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
25
Digit product
1,344
Digital root
7
Palindrome
No
Bit width
18 bits
Reversed
248,371
Recamán's sequence
a(190,004) = 173,842
Square (n²)
30,221,040,964
Cube (n³)
5,253,686,203,263,688
Divisor count
8
σ(n) — sum of divisors
276,156
φ(n) — Euler's totient
81,792
Sum of prime factors
5,132

Primality

Prime factorization: 2 × 17 × 5113

Nearest primes: 173,839 (−3) · 173,851 (+9)

Divisors & multiples

All divisors (8)
1 · 2 · 17 · 34 · 5113 · 10226 · 86921 (half) · 173842
Aliquot sum (sum of proper divisors): 102,314
Factor pairs (a × b = 173,842)
1 × 173842
2 × 86921
17 × 10226
34 × 5113
First multiples
173,842 · 347,684 (double) · 521,526 · 695,368 · 869,210 · 1,043,052 · 1,216,894 · 1,390,736 · 1,564,578 · 1,738,420

Sums & aliquot sequence

As a sum of two squares: 81² + 409² = 121² + 399²
As consecutive integers: 43,459 + 43,460 + 43,461 + 43,462 10,218 + 10,219 + … + 10,234 2,523 + 2,524 + … + 2,590
Aliquot sequence: 173,842 102,314 51,160 64,040 80,140 88,196 75,352 65,948 49,468 38,732 32,164 34,364 32,668 24,508 22,364 16,780 18,500 — unresolved within range

Continued fraction of √n

√173,842 = [416; (1, 16, 1, 2, 1, 8, 1, 5, 5, 3, 1, 1, 3, 2, 12, 5, 10, 10, 5, 12, 2, 3, 1, 1, …)]

Period length 35 — the block in parentheses repeats forever.

Representations

In words
one hundred seventy-three thousand eight hundred forty-two
Ordinal
173842nd
Binary
101010011100010010
Octal
523422
Hexadecimal
0x2A712
Base64
AqcS
One's complement
4,294,793,453 (32-bit)
Scientific notation
1.73842 × 10⁵
As a duration
173,842 s = 2 days, 17 minutes, 22 seconds
In other bases
ternary (3) 22211110121
quaternary (4) 222130102
quinary (5) 21030332
senary (6) 3420454
septenary (7) 1322554
nonary (9) 284417
undecimal (11) 109679
duodecimal (12) 8472a
tridecimal (13) 61186
tetradecimal (14) 474d4
pentadecimal (15) 36797

As an angle

173,842° = 482 × 360° + 322°
322° ≈ 5.62 rad
Compass bearing: NW (northwest)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹
Egyptian hieroglyphic
𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
Greek (Milesian)
͵ρογωμβʹ
Chinese
一十七萬三千八百四十二
Chinese (financial)
壹拾柒萬參仟捌佰肆拾貳
In other modern scripts
Eastern Arabic ١٧٣٨٤٢ Devanagari १७३८४२ Bengali ১৭৩৮৪২ Tamil ௧௭௩௮௪௨ Thai ๑๗๓๘๔๒ Tibetan ༡༧༣༨༤༢ Khmer ១៧៣៨៤២ Lao ໑໗໓໘໔໒ Burmese ၁၇၃၈၄၂

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 173842, here are decompositions:

  • 3 + 173839 = 173842
  • 23 + 173819 = 173842
  • 59 + 173783 = 173842
  • 101 + 173741 = 173842
  • 113 + 173729 = 173842
  • 173 + 173669 = 173842
  • 191 + 173651 = 173842
  • 269 + 173573 = 173842

Showing the first eight; more decompositions exist.

Unicode codepoint
𪜒
CJK Unified Ideograph-2A712
U+2A712
Other letter (Lo)

UTF-8 encoding: F0 AA 9C 92 (4 bytes).

Hex color
#02A712
RGB(2, 167, 18)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.167.18.

Address
0.2.167.18
Class
reserved
IPv4-mapped IPv6
::ffff:0.2.167.18

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

Possible US patent number

This number falls in the range of US utility patent numbers. If it's a patent, it would be issued as US 173,842 and was likely granted around 1874.

Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.

Position in π

The digit sequence 173842 first appears in π at position 61,494 of the decimal expansion (the 61,494ordinal-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.

Related reading

  • Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.