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1,042,644

1,042,644 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.).

1,042,644 (one million forty-two thousand six hundred forty-four) is an even 7-digit number. It is a composite number with 48 divisors, and factors as 2² × 3 × 17 × 19 × 269. Its proper divisors sum to 1,678,956, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xFE8D4.

Abundant Number Arithmetic Number Cube-Free Evil Number Practical Number Self Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
21
Digit product
0
Digital root
3
Palindrome
No
Bit width
20 bits
Reversed
4,462,401
Square (n²)
1,087,106,510,736
Cube (n³)
1,133,465,080,779,825,984
Divisor count
48
σ(n) — sum of divisors
2,721,600
φ(n) — Euler's totient
308,736
Sum of prime factors
312

Primality

Prime factorization: 2 2 × 3 × 17 × 19 × 269

Nearest primes: 1,042,633 (−11) · 1,042,681 (+37)

Divisors & multiples

All divisors (48)
1 · 2 · 3 · 4 · 6 · 12 · 17 · 19 · 34 · 38 · 51 · 57 · 68 · 76 · 102 · 114 · 204 · 228 · 269 · 323 · 538 · 646 · 807 · 969 · 1076 · 1292 · 1614 · 1938 · 3228 · 3876 · 4573 · 5111 · 9146 · 10222 · 13719 · 15333 · 18292 · 20444 · 27438 · 30666 · 54876 · 61332 · 86887 · 173774 · 260661 · 347548 · 521322 (half) · 1042644
Aliquot sum (sum of proper divisors): 1,678,956
Factor pairs (a × b = 1,042,644)
1 × 1042644
2 × 521322
3 × 347548
4 × 260661
6 × 173774
12 × 86887
17 × 61332
19 × 54876
34 × 30666
38 × 27438
51 × 20444
57 × 18292
68 × 15333
76 × 13719
102 × 10222
114 × 9146
204 × 5111
228 × 4573
269 × 3876
323 × 3228
538 × 1938
646 × 1614
807 × 1292
969 × 1076
First multiples
1,042,644 · 2,085,288 (double) · 3,127,932 · 4,170,576 · 5,213,220 · 6,255,864 · 7,298,508 · 8,341,152 · 9,383,796 · 10,426,440

Sums & aliquot sequence

As consecutive integers: 347,547 + 347,548 + 347,549 130,327 + 130,328 + … + 130,334 61,324 + 61,325 + … + 61,340 54,867 + 54,868 + … + 54,885
Aliquot sequence: 1,042,644 1,678,956 2,265,348 3,020,492 2,712,004 2,187,324 3,701,020 4,071,164 3,117,220 3,428,984 3,495,136 3,429,824 3,376,360 5,050,520 6,682,600 8,854,910 7,240,546 — unresolved within range

Continued fraction of √n

√1,042,644 = [1021; (10, 16, 1, 3, 2, 127, 5, 6, 6, 6, 5, 127, 2, 3, 1, 16, 10, 2042)]

Period length 18 — the block in parentheses repeats forever.

Representations

In words
one million forty-two thousand six hundred forty-four
Ordinal
1042644th
Binary
11111110100011010100
Octal
3764324
Hexadecimal
0xFE8D4
Base64
D+jU
One's complement
4,293,924,651 (32-bit)
Scientific notation
1.042644 × 10⁶
As a duration
1,042,644 s = 12 days, 1 hour, 37 minutes, 24 seconds
In other bases
ternary (3) 1221222020110
quaternary (4) 3332203110
quinary (5) 231331034
senary (6) 34203020
septenary (7) 11601531
nonary (9) 1858213
undecimal (11) 652399
duodecimal (12) 423470
tridecimal (13) 2a6765
tetradecimal (14) 1d1d88
pentadecimal (15) 158de9

As an angle

1,042,644° = 2,896 × 360° + 84°
84° ≈ 1.466 rad
Compass bearing: E (east)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺
Chinese
一百零四萬二千六百四十四
Chinese (financial)
壹佰零肆萬貳仟陸佰肆拾肆
In other modern scripts
Eastern Arabic ١٠٤٢٦٤٤ Devanagari १०४२६४४ Bengali ১০৪২৬৪৪ Tamil ௧௦௪௨௬௪௪ Thai ๑๐๔๒๖๔๔ Tibetan ༡༠༤༢༦༤༤ Khmer ១០៤២៦៤៤ Lao ໑໐໔໒໖໔໔ Burmese ၁၀၄၂၆၄၄

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1042644, here are decompositions:

  • 11 + 1042633 = 1042644
  • 13 + 1042631 = 1042644
  • 37 + 1042607 = 1042644
  • 47 + 1042597 = 1042644
  • 61 + 1042583 = 1042644
  • 67 + 1042577 = 1042644
  • 73 + 1042571 = 1042644
  • 157 + 1042487 = 1042644

Showing the first eight; more decompositions exist.

Hex color
#0FE8D4
RGB(15, 232, 212)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.232.212.

Address
0.15.232.212
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.232.212

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

Possible date

Could be parsed as a date. Most likely interpretation: Thursday, January 4, 2644 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 2644-04-01 (DMMYYYY (Euro, single-digit day))
  • 2644-10-04 (MMDYYYY (US, single-digit day))
  • 2644-04-10 (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 1,042,644 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°.