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138,476

138,476 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.).

138,476 (one hundred thirty-eight thousand four hundred seventy-six) is an even 6-digit number. It is a composite number with 12 divisors, and factors as 2² × 13 × 2,663. Written other ways, in hexadecimal, 0x21CEC.

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

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
29
Digit product
4,032
Digital root
2
Palindrome
No
Bit width
18 bits
Reversed
674,831
Recamán's sequence
a(491,875) = 138,476
Square (n²)
19,175,602,576
Cube (n³)
2,655,360,742,314,176
Divisor count
12
σ(n) — sum of divisors
261,072
φ(n) — Euler's totient
63,888
Sum of prime factors
2,680

Primality

Prime factorization: 2 2 × 13 × 2663

Nearest primes: 138,469 (−7) · 138,493 (+17)

Divisors & multiples

All divisors (12)
1 · 2 · 4 · 13 · 26 · 52 · 2663 · 5326 · 10652 · 34619 · 69238 (half) · 138476
Aliquot sum (sum of proper divisors): 122,596
Factor pairs (a × b = 138,476)
1 × 138476
2 × 69238
4 × 34619
13 × 10652
26 × 5326
52 × 2663
First multiples
138,476 · 276,952 (double) · 415,428 · 553,904 · 692,380 · 830,856 · 969,332 · 1,107,808 · 1,246,284 · 1,384,760

Sums & aliquot sequence

As consecutive integers: 17,306 + 17,307 + … + 17,313 10,646 + 10,647 + … + 10,658 1,280 + 1,281 + … + 1,383
Aliquot sequence: 138,476 122,596 91,954 52,046 27,658 13,832 19,768 22,712 22,648 22,352 25,264 23,716 29,351 4,849 387 185 43 — unresolved within range

Continued fraction of √n

√138,476 = [372; (8, 11, 3, 12, 1, 28, 1, 5, 2, 4, 2, 3, 2, 1, 7, 7, 4, 5, 2, 1, 4, 1, 1, 1, …)]

Representations

In words
one hundred thirty-eight thousand four hundred seventy-six
Ordinal
138476th
Binary
100001110011101100
Octal
416354
Hexadecimal
0x21CEC
Base64
Ahzs
One's complement
4,294,828,819 (32-bit)
Scientific notation
1.38476 × 10⁵
As a duration
138,476 s = 1 day, 14 hours, 27 minutes, 56 seconds
In other bases
ternary (3) 21000221202
quaternary (4) 201303230
quinary (5) 13412401
senary (6) 2545032
septenary (7) 1114502
nonary (9) 230852
undecimal (11) 95048
duodecimal (12) 68178
tridecimal (13) 4b050
tetradecimal (14) 38672
pentadecimal (15) 2b06b

As an angle

138,476° = 384 × 360° + 236°
236° ≈ 4.119 rad
Compass bearing: SW (southwest)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ρληυοϛʹ
Mayan (base 20)
𝋱·𝋦·𝋣·𝋰
Chinese
一十三萬八千四百七十六
Chinese (financial)
壹拾參萬捌仟肆佰柒拾陸
In other modern scripts
Eastern Arabic ١٣٨٤٧٦ Devanagari १३८४७६ Bengali ১৩৮৪৭৬ Tamil ௧௩௮௪௭௬ Thai ๑๓๘๔๗๖ Tibetan ༡༣༨༤༧༦ Khmer ១៣៨៤៧៦ Lao ໑໓໘໔໗໖ Burmese ၁၃၈၄၇၆

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 138476, here are decompositions:

  • 7 + 138469 = 138476
  • 43 + 138433 = 138476
  • 73 + 138403 = 138476
  • 103 + 138373 = 138476
  • 127 + 138349 = 138476
  • 139 + 138337 = 138476
  • 157 + 138319 = 138476
  • 193 + 138283 = 138476

Showing the first eight; more decompositions exist.

Unicode codepoint
𡳬
CJK Unified Ideograph-21Cec
U+21CEC
Other letter (Lo)

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

Hex color
#021CEC
RGB(2, 28, 236)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.28.236.

Address
0.2.28.236
Class
reserved
IPv4-mapped IPv6
::ffff:0.2.28.236

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 138,476 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.