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142,844

142,844 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.).

142,844 (one hundred forty-two thousand eight hundred forty-four) is an even 6-digit number. It is a composite number with 24 divisors, and factors as 2² × 13 × 41 × 67. Written other ways, in hexadecimal, 0x22DFC.

Arithmetic Number Cube-Free Deficient Number Odious Number Pernicious Number Recamán's Sequence

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
23
Digit product
1,024
Digital root
5
Palindrome
No
Bit width
18 bits
Reversed
448,241
Recamán's sequence
a(222,728) = 142,844
Square (n²)
20,404,408,336
Cube (n³)
2,914,647,304,347,584
Divisor count
24
σ(n) — sum of divisors
279,888
φ(n) — Euler's totient
63,360
Sum of prime factors
125

Primality

Prime factorization: 2 2 × 13 × 41 × 67

Nearest primes: 142,841 (−3) · 142,867 (+23)

Divisors & multiples

All divisors (24)
1 · 2 · 4 · 13 · 26 · 41 · 52 · 67 · 82 · 134 · 164 · 268 · 533 · 871 · 1066 · 1742 · 2132 · 2747 · 3484 · 5494 · 10988 · 35711 · 71422 (half) · 142844
Aliquot sum (sum of proper divisors): 137,044
Factor pairs (a × b = 142,844)
1 × 142844
2 × 71422
4 × 35711
13 × 10988
26 × 5494
41 × 3484
52 × 2747
67 × 2132
82 × 1742
134 × 1066
164 × 871
268 × 533
First multiples
142,844 · 285,688 (double) · 428,532 · 571,376 · 714,220 · 857,064 · 999,908 · 1,142,752 · 1,285,596 · 1,428,440

Sums & aliquot sequence

As consecutive integers: 17,852 + 17,853 + … + 17,859 10,982 + 10,983 + … + 10,994 3,464 + 3,465 + … + 3,504 2,099 + 2,100 + … + 2,165
Aliquot sequence: 142,844 137,044 102,790 92,330 97,750 104,426 74,614 37,310 47,362 39,038 20,362 10,184 10,216 8,954 6,208 6,238 3,122 — unresolved within range

Continued fraction of √n

√142,844 = [377; (1, 17, 1, 8, 1, 6, 1, 1, 1, 14, 1, 3, 2, 3, 4, 9, 1, 1, 2, 2, 17, 6, 5, 3, …)]

Representations

In words
one hundred forty-two thousand eight hundred forty-four
Ordinal
142844th
Binary
100010110111111100
Octal
426774
Hexadecimal
0x22DFC
Base64
Ai38
One's complement
4,294,824,451 (32-bit)
Scientific notation
1.42844 × 10⁵
As a duration
142,844 s = 1 day, 15 hours, 40 minutes, 44 seconds
In other bases
ternary (3) 21020221112
quaternary (4) 202313330
quinary (5) 14032334
senary (6) 3021152
septenary (7) 1133312
nonary (9) 236845
undecimal (11) 98359
duodecimal (12) 6a7b8
tridecimal (13) 50030
tetradecimal (14) 3a0b2
pentadecimal (15) 2c4ce

As an angle

142,844° = 396 × 360° + 284°
284° ≈ 4.957 rad
Compass bearing: WNW (west-northwest)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ρμβωμδʹ
Mayan (base 20)
𝋱·𝋱·𝋢·𝋤
Chinese
一十四萬二千八百四十四
Chinese (financial)
壹拾肆萬貳仟捌佰肆拾肆
In other modern scripts
Eastern Arabic ١٤٢٨٤٤ Devanagari १४२८४४ Bengali ১৪২৮৪৪ Tamil ௧௪௨௮௪௪ Thai ๑๔๒๘๔๔ Tibetan ༡༤༢༨༤༤ Khmer ១៤២៨៤៤ Lao ໑໔໒໘໔໔ Burmese ၁၄၂၈၄၄

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 142844, here are decompositions:

  • 3 + 142841 = 142844
  • 7 + 142837 = 142844
  • 73 + 142771 = 142844
  • 271 + 142573 = 142844
  • 277 + 142567 = 142844
  • 307 + 142537 = 142844
  • 463 + 142381 = 142844
  • 487 + 142357 = 142844

Showing the first eight; more decompositions exist.

Unicode codepoint
𢷼
CJK Unified Ideograph-22Dfc
U+22DFC
Other letter (Lo)

UTF-8 encoding: F0 A2 B7 BC (4 bytes).

Hex color
#022DFC
RGB(2, 45, 252)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.45.252.

Address
0.2.45.252
Class
reserved
IPv4-mapped IPv6
::ffff:0.2.45.252

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 142,844 and was likely granted around 1872.

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

Related reading

  • Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.