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1,042,402

1,042,402 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.).

1,042,402 (one million forty-two thousand four hundred two) is an even 7-digit number. It is a composite number with 4 divisors, and factors as 2 × 521,201. Written other ways, in hexadecimal, 0xFE7E2.

Cube-Free Deficient Number Evil Number Semiprime Smith Number Squarefree

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
13
Digit product
0
Digital root
4
Palindrome
No
Bit width
20 bits
Reversed
2,042,401
Square (n²)
1,086,601,929,604
Cube (n³)
1,132,676,024,623,068,808
Divisor count
4
σ(n) — sum of divisors
1,563,606
φ(n) — Euler's totient
521,200
Sum of prime factors
521,203

Primality

Prime factorization: 2 × 521201

Nearest primes: 1,042,399 (−3) · 1,042,427 (+25)

Divisors & multiples

All divisors (4)
1 · 2 · 521201 (half) · 1042402
Aliquot sum (sum of proper divisors): 521,204
Factor pairs (a × b = 1,042,402)
1 × 1042402
2 × 521201
First multiples
1,042,402 · 2,084,804 (double) · 3,127,206 · 4,169,608 · 5,212,010 · 6,254,412 · 7,296,814 · 8,339,216 · 9,381,618 · 10,424,020

Sums & aliquot sequence

As a sum of two squares: 201² + 1,001²
As consecutive integers: 260,599 + 260,600 + 260,601 + 260,602
Aliquot sequence: 1,042,402 521,204 396,496 371,746 185,876 150,124 132,900 252,492 349,284 528,796 396,604 379,556 284,674 175,226 87,616 91,073 1,555 — unresolved within range

Continued fraction of √n

√1,042,402 = [1020; (1, 51, 2, 1, 3, 1, 3, 59, 1, 3, 1, 5, 2, 2, 5, 7, 1, 5, 1, 6, 4, 1, 2, 1, …)]

Representations

In words
one million forty-two thousand four hundred two
Ordinal
1042402nd
Binary
11111110011111100010
Octal
3763742
Hexadecimal
0xFE7E2
Base64
D+fi
One's complement
4,293,924,893 (32-bit)
Scientific notation
1.042402 × 10⁶
As a duration
1,042,402 s = 12 days, 1 hour, 33 minutes, 22 seconds
In other bases
ternary (3) 1221221220111
quaternary (4) 3332133202
quinary (5) 231324102
senary (6) 34201534
septenary (7) 11601034
nonary (9) 1857814
undecimal (11) 652199
duodecimal (12) 4232aa
tridecimal (13) 2a660a
tetradecimal (14) 1d1c54
pentadecimal (15) 158cd7

As an angle

1,042,402° = 2,895 × 360° + 202°
202° ≈ 3.526 rad
Compass bearing: SSW (south-southwest)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓏺𓏺
Chinese
一百零四萬二千四百零二
Chinese (financial)
壹佰零肆萬貳仟肆佰零貳
In other modern scripts
Eastern Arabic ١٠٤٢٤٠٢ Devanagari १०४२४०२ Bengali ১০৪২৪০২ Tamil ௧௦௪௨௪௦௨ Thai ๑๐๔๒๔๐๒ Tibetan ༡༠༤༢༤༠༢ Khmer ១០៤២៤០២ Lao ໑໐໔໒໔໐໒ Burmese ၁၀၄၂၄၀၂

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1042402, here are decompositions:

  • 3 + 1042399 = 1042402
  • 29 + 1042373 = 1042402
  • 71 + 1042331 = 1042402
  • 131 + 1042271 = 1042402
  • 191 + 1042211 = 1042402
  • 269 + 1042133 = 1042402
  • 281 + 1042121 = 1042402
  • 293 + 1042109 = 1042402

Showing the first eight; more decompositions exist.

Hex color
#0FE7E2
RGB(15, 231, 226)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.231.226.

Address
0.15.231.226
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.231.226

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

Possible date

Could be parsed as a date. Most likely interpretation: Friday, January 4, 2402 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 2402-04-01 (DMMYYYY (Euro, single-digit day))
  • 2402-10-04 (MMDYYYY (US, single-digit day))
  • 2402-04-10 (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 1,042,402 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°.