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1,040,842

1,040,842 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.).

1,040,842 (one million forty thousand eight hundred forty-two) is an even 7-digit number. It is a composite number with 32 divisors, and factors as 2 × 11³ × 17 × 23. Written other ways, in hexadecimal, 0xFE1CA.

Arithmetic Number Deficient Number Evil Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
19
Digit product
0
Digital root
1
Palindrome
No
Bit width
20 bits
Reversed
2,480,401
Square (n²)
1,083,352,068,964
Cube (n³)
1,127,598,334,164,627,688
Divisor count
32
σ(n) — sum of divisors
1,897,344
φ(n) — Euler's totient
425,920
Sum of prime factors
75

Primality

Prime factorization: 2 × 11 3 × 17 × 23

Nearest primes: 1,040,833 (−9) · 1,040,857 (+15)

Divisors & multiples

All divisors (32)
1 · 2 · 11 · 17 · 22 · 23 · 34 · 46 · 121 · 187 · 242 · 253 · 374 · 391 · 506 · 782 · 1331 · 2057 · 2662 · 2783 · 4114 · 4301 · 5566 · 8602 · 22627 · 30613 · 45254 · 47311 · 61226 · 94622 · 520421 (half) · 1040842
Aliquot sum (sum of proper divisors): 856,502
Factor pairs (a × b = 1,040,842)
1 × 1040842
2 × 520421
11 × 94622
17 × 61226
22 × 47311
23 × 45254
34 × 30613
46 × 22627
121 × 8602
187 × 5566
242 × 4301
253 × 4114
374 × 2783
391 × 2662
506 × 2057
782 × 1331
First multiples
1,040,842 · 2,081,684 (double) · 3,122,526 · 4,163,368 · 5,204,210 · 6,245,052 · 7,285,894 · 8,326,736 · 9,367,578 · 10,408,420

Sums & aliquot sequence

As consecutive integers: 260,209 + 260,210 + 260,211 + 260,212 94,617 + 94,618 + … + 94,627 61,218 + 61,219 + … + 61,234 45,243 + 45,244 + … + 45,265
Aliquot sequence: 1,040,842 856,502 428,254 217,586 108,796 85,244 66,124 51,924 69,260 76,228 74,972 56,236 48,092 43,804 34,820 38,344 33,566 — unresolved within range

Continued fraction of √n

√1,040,842 = [1020; (4, 1, 1, 1, 1, 1, 1, 11, 2, 5, 3, 3, 10, 1, 5, 1, 1, 2, 2, 1, 1, 1, 1, 16, …)]

Representations

In words
one million forty thousand eight hundred forty-two
Ordinal
1040842nd
Binary
11111110000111001010
Octal
3760712
Hexadecimal
0xFE1CA
Base64
D+HK
One's complement
4,293,926,453 (32-bit)
Scientific notation
1.040842 × 10⁶
As a duration
1,040,842 s = 12 days, 1 hour, 7 minutes, 22 seconds
In other bases
ternary (3) 1221212202201
quaternary (4) 3332013022
quinary (5) 231301332
senary (6) 34150414
septenary (7) 11563345
nonary (9) 1855681
undecimal (11) 651000
duodecimal (12) 42240a
tridecimal (13) 2a59aa
tetradecimal (14) 1d145c
pentadecimal (15) 1585e7

As an angle

1,040,842° = 2,891 × 360° + 82°
82° ≈ 1.431 rad
Compass bearing: E (east)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓂍𓂍𓂍𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
Chinese
一百零四萬零八百四十二
Chinese (financial)
壹佰零肆萬零捌佰肆拾貳
In other modern scripts
Eastern Arabic ١٠٤٠٨٤٢ Devanagari १०४०८४२ Bengali ১০৪০৮৪২ Tamil ௧௦௪௦௮௪௨ Thai ๑๐๔๐๘๔๒ Tibetan ༡༠༤༠༨༤༢ Khmer ១០៤០៨៤២ Lao ໑໐໔໐໘໔໒ Burmese ၁၀၄၀၈၄၂

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1040842, here are decompositions:

  • 29 + 1040813 = 1040842
  • 59 + 1040783 = 1040842
  • 71 + 1040771 = 1040842
  • 191 + 1040651 = 1040842
  • 263 + 1040579 = 1040842
  • 311 + 1040531 = 1040842
  • 353 + 1040489 = 1040842
  • 359 + 1040483 = 1040842

Showing the first eight; more decompositions exist.

Hex color
#0FE1CA
RGB(15, 225, 202)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.225.202.

Address
0.15.225.202
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.225.202

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

Possible date

Could be parsed as a date. Most likely interpretation: Saturday, January 4, 0842 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 0842-04-01 (DMMYYYY (Euro, single-digit day))
  • 0842-10-04 (MMDYYYY (US, single-digit day))
  • 0842-04-10 (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 1,040,842 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°.