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1,042,442

1,042,442 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.).

1,042,442 (one million forty-two thousand four hundred forty-two) is an even 7-digit number. It is a composite number with 8 divisors, and factors as 2 × 233 × 2,237. Written other ways, in hexadecimal, 0xFE80A.

Cube-Free Deficient Number Evil Number Self Number Sphenic Number Squarefree

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
17
Digit product
0
Digital root
8
Palindrome
No
Bit width
20 bits
Reversed
2,442,401
Square (n²)
1,086,685,323,364
Cube (n³)
1,132,806,421,858,214,888
Divisor count
8
σ(n) — sum of divisors
1,571,076
φ(n) — Euler's totient
518,752
Sum of prime factors
2,472

Primality

Prime factorization: 2 × 233 × 2237

Nearest primes: 1,042,439 (−3) · 1,042,451 (+9)

Divisors & multiples

All divisors (8)
1 · 2 · 233 · 466 · 2237 · 4474 · 521221 (half) · 1042442
Aliquot sum (sum of proper divisors): 528,634
Factor pairs (a × b = 1,042,442)
1 × 1042442
2 × 521221
233 × 4474
466 × 2237
First multiples
1,042,442 · 2,084,884 (double) · 3,127,326 · 4,169,768 · 5,212,210 · 6,254,652 · 7,297,094 · 8,339,536 · 9,381,978 · 10,424,420

Sums & aliquot sequence

As a sum of two squares: 1² + 1,021² = 461² + 911²
As consecutive integers: 260,609 + 260,610 + 260,611 + 260,612 4,358 + 4,359 + … + 4,590 653 + 654 + … + 1,584
Aliquot sequence: 1,042,442 528,634 272,474 136,240 207,488 206,122 147,254 93,802 46,904 58,936 54,464 61,360 94,880 129,652 97,246 48,626 26,218 — unresolved within range

Continued fraction of √n

√1,042,442 = [1021; (2042)]

Period length 1 — the block in parentheses repeats forever.

Representations

In words
one million forty-two thousand four hundred forty-two
Ordinal
1042442nd
Binary
11111110100000001010
Octal
3764012
Hexadecimal
0xFE80A
Base64
D+gK
One's complement
4,293,924,853 (32-bit)
Scientific notation
1.042442 × 10⁶
As a duration
1,042,442 s = 12 days, 1 hour, 34 minutes, 2 seconds
In other bases
ternary (3) 1221221221222
quaternary (4) 3332200022
quinary (5) 231324232
senary (6) 34202042
septenary (7) 11601122
nonary (9) 1857858
undecimal (11) 652225
duodecimal (12) 423322
tridecimal (13) 2a663b
tetradecimal (14) 1d1c82
pentadecimal (15) 158d12

As an angle

1,042,442° = 2,895 × 360° + 242°
242° ≈ 4.224 rad
Compass bearing: WSW (west-southwest)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
Chinese
一百零四萬二千四百四十二
Chinese (financial)
壹佰零肆萬貳仟肆佰肆拾貳
In other modern scripts
Eastern Arabic ١٠٤٢٤٤٢ Devanagari १०४२४४२ Bengali ১০৪২৪৪২ Tamil ௧௦௪௨௪௪௨ Thai ๑๐๔๒๔๔๒ Tibetan ༡༠༤༢༤༤༢ Khmer ១០៤២៤៤២ Lao ໑໐໔໒໔໔໒ Burmese ၁၀၄၂၄၄၂

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1042442, here are decompositions:

  • 3 + 1042439 = 1042442
  • 43 + 1042399 = 1042442
  • 61 + 1042381 = 1042442
  • 73 + 1042369 = 1042442
  • 109 + 1042333 = 1042442
  • 199 + 1042243 = 1042442
  • 421 + 1042021 = 1042442
  • 523 + 1041919 = 1042442

Showing the first eight; more decompositions exist.

Hex color
#0FE80A
RGB(15, 232, 10)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.232.10.

Address
0.15.232.10
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.232.10

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

Possible date

Could be parsed as a date. Most likely interpretation: Saturday, January 4, 2442 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 2442-04-01 (DMMYYYY (Euro, single-digit day))
  • 2442-10-04 (MMDYYYY (US, single-digit day))
  • 2442-04-10 (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 1,042,442 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°.