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1,048,642

1,048,642 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.).

1,048,642 (one million forty-eight thousand six hundred forty-two) is an even 7-digit number. It is a composite number with 8 divisors, and factors as 2 × 7 × 74,903. Written other ways, in hexadecimal, 0x100042.

Arithmetic Number Cube-Free Deficient Number Odious Number Pernicious Number Sphenic Number Squarefree

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
25
Digit product
0
Digital root
7
Palindrome
No
Bit width
21 bits
Reversed
2,468,401
Square (n²)
1,099,650,044,164
Cube (n³)
1,153,139,221,612,225,288
Divisor count
8
σ(n) — sum of divisors
1,797,696
φ(n) — Euler's totient
449,412
Sum of prime factors
74,912

Primality

Prime factorization: 2 × 7 × 74903

Nearest primes: 1,048,633 (−9) · 1,048,661 (+19)

Divisors & multiples

All divisors (8)
1 · 2 · 7 · 14 · 74903 · 149806 · 524321 (half) · 1048642
Aliquot sum (sum of proper divisors): 749,054
Factor pairs (a × b = 1,048,642)
1 × 1048642
2 × 524321
7 × 149806
14 × 74903
First multiples
1,048,642 · 2,097,284 (double) · 3,145,926 · 4,194,568 · 5,243,210 · 6,291,852 · 7,340,494 · 8,389,136 · 9,437,778 · 10,486,420

Sums & aliquot sequence

As consecutive integers: 262,159 + 262,160 + 262,161 + 262,162 149,803 + 149,804 + … + 149,809 37,438 + 37,439 + … + 37,465
Aliquot sequence: 1,048,642 749,054 440,674 313,814 185,146 113,978 56,992 64,724 58,924 44,200 72,980 85,780 94,400 141,820 198,884 198,940 305,060 — unresolved within range

Continued fraction of √n

√1,048,642 = [1024; (31, 32, 2, 10, 4, 2, 1, 24, 1, 1, 2, 5, 3, 3, 1, 4, 5, 1, 1, 2, 4, 1, 2, 2, …)]

Representations

In words
one million forty-eight thousand six hundred forty-two
Ordinal
1048642nd
Binary
100000000000001000010
Octal
4000102
Hexadecimal
0x100042
Base64
EABC
One's complement
4,293,918,653 (32-bit)
Scientific notation
1.048642 × 10⁶
As a duration
1,048,642 s = 12 days, 3 hours, 17 minutes, 22 seconds
In other bases
ternary (3) 1222021110121
quaternary (4) 10000001002
quinary (5) 232024032
senary (6) 34250454
septenary (7) 11625160
nonary (9) 1867417
undecimal (11) 656951
duodecimal (12) 426a2a
tridecimal (13) 2a93ca
tetradecimal (14) 1d4230
pentadecimal (15) 15aa97

As an angle

1,048,642° = 2,912 × 360° + 322°
322° ≈ 5.62 rad
Compass bearing: NW (northwest)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
Chinese
一百零四萬八千六百四十二
Chinese (financial)
壹佰零肆萬捌仟陸佰肆拾貳
In other modern scripts
Eastern Arabic ١٠٤٨٦٤٢ Devanagari १०४८६४२ Bengali ১০৪৮৬৪২ Tamil ௧௦௪௮௬௪௨ Thai ๑๐๔๘๖๔๒ Tibetan ༡༠༤༨༦༤༢ Khmer ១០៤៨៦៤២ Lao ໑໐໔໘໖໔໒ Burmese ၁၀၄၈၆၄၂

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1048642, here are decompositions:

  • 29 + 1048613 = 1048642
  • 41 + 1048601 = 1048642
  • 53 + 1048589 = 1048642
  • 59 + 1048583 = 1048642
  • 71 + 1048571 = 1048642
  • 83 + 1048559 = 1048642
  • 251 + 1048391 = 1048642
  • 281 + 1048361 = 1048642

Showing the first eight; more decompositions exist.

Hex color
#100042
RGB(16, 0, 66)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.16.0.66.

Address
0.16.0.66
Class
reserved
IPv4-mapped IPv6
::ffff:0.16.0.66

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

Possible date

Could be parsed as a date. Most likely interpretation: Tuesday, January 4, 8642 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 8642-04-01 (DMMYYYY (Euro, single-digit day))
  • 8642-10-04 (MMDYYYY (US, single-digit day))
  • 8642-04-10 (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 1,048,642 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°.