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143,828

143,828 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.).

143,828 (one hundred forty-three thousand eight hundred twenty-eight) is an even 6-digit number. It is a composite number with 12 divisors, and factors as 2² × 41 × 877. Written other ways, in hexadecimal, 0x231D4.

Arithmetic Number Cube-Free Deficient Number Evil Number Recamán's Sequence

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
26
Digit product
1,536
Digital root
8
Palindrome
No
Bit width
18 bits
Reversed
828,341
Recamán's sequence
a(220,760) = 143,828
Square (n²)
20,686,493,584
Cube (n³)
2,975,296,999,199,552
Divisor count
12
σ(n) — sum of divisors
258,132
φ(n) — Euler's totient
70,080
Sum of prime factors
922

Primality

Prime factorization: 2 2 × 41 × 877

Nearest primes: 143,827 (−1) · 143,831 (+3)

Divisors & multiples

All divisors (12)
1 · 2 · 4 · 41 · 82 · 164 · 877 · 1754 · 3508 · 35957 · 71914 (half) · 143828
Aliquot sum (sum of proper divisors): 114,304
Factor pairs (a × b = 143,828)
1 × 143828
2 × 71914
4 × 35957
41 × 3508
82 × 1754
164 × 877
First multiples
143,828 · 287,656 (double) · 431,484 · 575,312 · 719,140 · 862,968 · 1,006,796 · 1,150,624 · 1,294,452 · 1,438,280

Sums & aliquot sequence

As a sum of two squares: 172² + 338² = 242² + 292²
As consecutive integers: 17,975 + 17,976 + … + 17,982 3,488 + 3,489 + … + 3,528 275 + 276 + … + 602
Aliquot sequence: 143,828 114,304 130,496 128,584 112,526 56,266 40,214 20,110 16,106 8,056 8,144 7,666 3,836 3,892 3,948 6,804 13,580 — unresolved within range

Continued fraction of √n

√143,828 = [379; (4, 18, 4, 758)]

Period length 4 — the block in parentheses repeats forever.

Representations

In words
one hundred forty-three thousand eight hundred twenty-eight
Ordinal
143828th
Binary
100011000111010100
Octal
430724
Hexadecimal
0x231D4
Base64
AjHU
One's complement
4,294,823,467 (32-bit)
Scientific notation
1.43828 × 10⁵
As a duration
143,828 s = 1 day, 15 hours, 57 minutes, 8 seconds
In other bases
ternary (3) 21022021222
quaternary (4) 203013110
quinary (5) 14100303
senary (6) 3025512
septenary (7) 1136216
nonary (9) 238258
undecimal (11) 99073
duodecimal (12) 6b298
tridecimal (13) 50609
tetradecimal (14) 3a5b6
pentadecimal (15) 2c938

As an angle

143,828° = 399 × 360° + 188°
188° ≈ 3.281 rad
Compass bearing: S (south)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ρμγωκηʹ
Mayan (base 20)
𝋱·𝋳·𝋫·𝋨
Chinese
一十四萬三千八百二十八
Chinese (financial)
壹拾肆萬參仟捌佰貳拾捌
In other modern scripts
Eastern Arabic ١٤٣٨٢٨ Devanagari १४३८२८ Bengali ১৪৩৮২৮ Tamil ௧௪௩௮௨௮ Thai ๑๔๓๘๒๘ Tibetan ༡༤༣༨༢༨ Khmer ១៤៣៨២៨ Lao ໑໔໓໘໒໘ Burmese ၁၄၃၈၂၈

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 143828, here are decompositions:

  • 7 + 143821 = 143828
  • 31 + 143797 = 143828
  • 37 + 143791 = 143828
  • 109 + 143719 = 143828
  • 151 + 143677 = 143828
  • 199 + 143629 = 143828
  • 211 + 143617 = 143828
  • 277 + 143551 = 143828

Showing the first eight; more decompositions exist.

Unicode codepoint
𣇔
CJK Unified Ideograph-231D4
U+231D4
Other letter (Lo)

UTF-8 encoding: F0 A3 87 94 (4 bytes).

Hex color
#0231D4
RGB(2, 49, 212)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.49.212.

Address
0.2.49.212
Class
reserved
IPv4-mapped IPv6
::ffff:0.2.49.212

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 143,828 and was likely granted around 1873.

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.