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138,466

138,466 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.).

138,466 (one hundred thirty-eight thousand four hundred sixty-six) is an even 6-digit number. It is a composite number with 4 divisors, and factors as 2 × 69,233. Written other ways, in hexadecimal, 0x21CE2.

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

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
28
Digit product
3,456
Digital root
1
Palindrome
No
Bit width
18 bits
Reversed
664,831
Recamán's sequence
a(491,895) = 138,466
Square (n²)
19,172,833,156
Cube (n³)
2,654,785,515,778,696
Divisor count
4
σ(n) — sum of divisors
207,702
φ(n) — Euler's totient
69,232
Sum of prime factors
69,235

Primality

Prime factorization: 2 × 69233

Nearest primes: 138,461 (−5) · 138,469 (+3)

Divisors & multiples

All divisors (4)
1 · 2 · 69233 (half) · 138466
Aliquot sum (sum of proper divisors): 69,236
Factor pairs (a × b = 138,466)
1 × 138466
2 × 69233
First multiples
138,466 · 276,932 (double) · 415,398 · 553,864 · 692,330 · 830,796 · 969,262 · 1,107,728 · 1,246,194 · 1,384,660

Sums & aliquot sequence

As a sum of two squares: 255² + 271²
As consecutive integers: 34,615 + 34,616 + 34,617 + 34,618
Aliquot sequence: 138,466 69,236 58,444 49,356 78,884 77,524 58,150 50,102 34,570 27,674 14,554 8,486 4,246 2,738 1,483 1 0 — terminates at zero

Continued fraction of √n

√138,466 = [372; (9, 13, 2, 2, 1, 1, 1, 2, 1, 1, 3, 2, 18, 1, 1, 1, 4, 4, 1, 11, 5, 8, 2, 1, …)]

Representations

In words
one hundred thirty-eight thousand four hundred sixty-six
Ordinal
138466th
Binary
100001110011100010
Octal
416342
Hexadecimal
0x21CE2
Base64
Ahzi
One's complement
4,294,828,829 (32-bit)
Scientific notation
1.38466 × 10⁵
As a duration
138,466 s = 1 day, 14 hours, 27 minutes, 46 seconds
In other bases
ternary (3) 21000221101
quaternary (4) 201303202
quinary (5) 13412331
senary (6) 2545014
septenary (7) 1114456
nonary (9) 230841
undecimal (11) 95039
duodecimal (12) 6816a
tridecimal (13) 4b043
tetradecimal (14) 38666
pentadecimal (15) 2b061

As an angle

138,466° = 384 × 360° + 226°
226° ≈ 3.944 rad
Compass bearing: SW (southwest)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ρληυξϛʹ
Mayan (base 20)
𝋱·𝋦·𝋣·𝋦
Chinese
一十三萬八千四百六十六
Chinese (financial)
壹拾參萬捌仟肆佰陸拾陸
In other modern scripts
Eastern Arabic ١٣٨٤٦٦ Devanagari १३८४६६ Bengali ১৩৮৪৬৬ Tamil ௧௩௮௪௬௬ Thai ๑๓๘๔๖๖ Tibetan ༡༣༨༤༦༦ Khmer ១៣៨៤៦៦ Lao ໑໓໘໔໖໖ Burmese ၁၃၈၄၆၆

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 138466, here are decompositions:

  • 5 + 138461 = 138466
  • 17 + 138449 = 138466
  • 59 + 138407 = 138466
  • 227 + 138239 = 138466
  • 257 + 138209 = 138466
  • 269 + 138197 = 138466
  • 353 + 138113 = 138466
  • 359 + 138107 = 138466

Showing the first eight; more decompositions exist.

Unicode codepoint
𡳢
CJK Unified Ideograph-21Ce2
U+21CE2
Other letter (Lo)

UTF-8 encoding: F0 A1 B3 A2 (4 bytes).

Hex color
#021CE2
RGB(2, 28, 226)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.28.226.

Address
0.2.28.226
Class
reserved
IPv4-mapped IPv6
::ffff:0.2.28.226

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 138,466 and was likely granted around 1872.

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

Position in π

The digit sequence 138466 first appears in π at position 931,034 of the decimal expansion (the 931,034ordinal-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