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1,042,138

1,042,138 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.).

1,042,138 (one million forty-two thousand one hundred thirty-eight) is an even 7-digit number. It is a composite number with 16 divisors, and factors as 2 × 41 × 71 × 179. Written other ways, in hexadecimal, 0xFE6DA.

Arithmetic Number Cube-Free Deficient Number Evil Number Squarefree

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
19
Digit product
0
Digital root
1
Palindrome
No
Bit width
20 bits
Reversed
8,312,401
Square (n²)
1,086,051,611,044
Cube (n³)
1,131,815,653,830,172,072
Divisor count
16
σ(n) — sum of divisors
1,632,960
φ(n) — Euler's totient
498,400
Sum of prime factors
293

Primality

Prime factorization: 2 × 41 × 71 × 179

Nearest primes: 1,042,133 (−5) · 1,042,141 (+3)

Divisors & multiples

All divisors (16)
1 · 2 · 41 · 71 · 82 · 142 · 179 · 358 · 2911 · 5822 · 7339 · 12709 · 14678 · 25418 · 521069 (half) · 1042138
Aliquot sum (sum of proper divisors): 590,822
Factor pairs (a × b = 1,042,138)
1 × 1042138
2 × 521069
41 × 25418
71 × 14678
82 × 12709
142 × 7339
179 × 5822
358 × 2911
First multiples
1,042,138 · 2,084,276 (double) · 3,126,414 · 4,168,552 · 5,210,690 · 6,252,828 · 7,294,966 · 8,337,104 · 9,379,242 · 10,421,380

Sums & aliquot sequence

As consecutive integers: 260,533 + 260,534 + 260,535 + 260,536 25,398 + 25,399 + … + 25,438 14,643 + 14,644 + … + 14,713 6,273 + 6,274 + … + 6,436
Aliquot sequence: 1,042,138 590,822 295,414 211,034 105,520 140,000 253,624 300,416 298,324 264,000 686,976 1,138,824 1,945,686 1,993,578 1,993,590 3,498,858 4,992,534 — unresolved within range

Continued fraction of √n

√1,042,138 = [1020; (1, 5, 1, 2, 1, 4, 1, 4, 1, 1, 1, 2, 1, 1, 1, 26, 1, 22, 1, 1, 61, 2, 1, 3, …)]

Representations

In words
one million forty-two thousand one hundred thirty-eight
Ordinal
1042138th
Binary
11111110011011011010
Octal
3763332
Hexadecimal
0xFE6DA
Base64
D+ba
One's complement
4,293,925,157 (32-bit)
Scientific notation
1.042138 × 10⁶
As a duration
1,042,138 s = 12 days, 1 hour, 28 minutes, 58 seconds
In other bases
ternary (3) 1221221112201
quaternary (4) 3332123122
quinary (5) 231322023
senary (6) 34200414
septenary (7) 11600206
nonary (9) 1857481
undecimal (11) 651a79
duodecimal (12) 42310a
tridecimal (13) 2a6466
tetradecimal (14) 1d1b06
pentadecimal (15) 158bad

As an angle

1,042,138° = 2,894 × 360° + 298°
298° ≈ 5.201 rad
Compass bearing: WNW (west-northwest)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Chinese
一百零四萬二千一百三十八
Chinese (financial)
壹佰零肆萬貳仟壹佰參拾捌
In other modern scripts
Eastern Arabic ١٠٤٢١٣٨ Devanagari १०४२१३८ Bengali ১০৪২১৩৮ Tamil ௧௦௪௨௧௩௮ Thai ๑๐๔๒๑๓๘ Tibetan ༡༠༤༢༡༣༨ Khmer ១០៤២១៣៨ Lao ໑໐໔໒໑໓໘ Burmese ၁၀၄၂၁၃၈

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1042138, here are decompositions:

  • 5 + 1042133 = 1042138
  • 17 + 1042121 = 1042138
  • 29 + 1042109 = 1042138
  • 47 + 1042091 = 1042138
  • 137 + 1042001 = 1042138
  • 269 + 1041869 = 1042138
  • 281 + 1041857 = 1042138
  • 359 + 1041779 = 1042138

Showing the first eight; more decompositions exist.

Hex color
#0FE6DA
RGB(15, 230, 218)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.230.218.

Address
0.15.230.218
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.230.218

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

Possible date

Could be parsed as a date. Most likely interpretation: Saturday, January 4, 2138 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 2138-04-01 (DMMYYYY (Euro, single-digit day))
  • 2138-10-04 (MMDYYYY (US, single-digit day))
  • 2138-04-10 (DDMYYYY (Euro, single-digit month))
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 1,042,138 and was likely granted around 1912.

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

Related reading

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