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1,021,404

1,021,404 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.).

1,021,404 (one million twenty-one thousand four hundred four) is an even 7-digit number. It is a composite number with 24 divisors, and factors as 2² × 3 × 47 × 1,811. Its proper divisors sum to 1,413,924, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF95DC.

Abundant Number Arithmetic Number Cube-Free Harshad / Niven Odious Number Pernicious Number Self Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
12
Digit product
0
Digital root
3
Palindrome
No
Bit width
20 bits
Reversed
4,041,201
Square (n²)
1,043,266,131,216
Cube (n³)
1,065,596,199,488,547,264
Divisor count
24
σ(n) — sum of divisors
2,435,328
φ(n) — Euler's totient
333,040
Sum of prime factors
1,865

Primality

Prime factorization: 2 2 × 3 × 47 × 1811

Nearest primes: 1,021,403 (−1) · 1,021,417 (+13)

Divisors & multiples

All divisors (24)
1 · 2 · 3 · 4 · 6 · 12 · 47 · 94 · 141 · 188 · 282 · 564 · 1811 · 3622 · 5433 · 7244 · 10866 · 21732 · 85117 · 170234 · 255351 · 340468 · 510702 (half) · 1021404
Aliquot sum (sum of proper divisors): 1,413,924
Factor pairs (a × b = 1,021,404)
1 × 1021404
2 × 510702
3 × 340468
4 × 255351
6 × 170234
12 × 85117
47 × 21732
94 × 10866
141 × 7244
188 × 5433
282 × 3622
564 × 1811
First multiples
1,021,404 · 2,042,808 (double) · 3,064,212 · 4,085,616 · 5,107,020 · 6,128,424 · 7,149,828 · 8,171,232 · 9,192,636 · 10,214,040

Sums & aliquot sequence

As consecutive integers: 340,467 + 340,468 + 340,469 127,672 + 127,673 + … + 127,679 42,547 + 42,548 + … + 42,570 21,709 + 21,710 + … + 21,755
Aliquot sequence: 1,021,404 1,413,924 2,214,876 2,977,444 2,281,656 4,008,264 7,180,536 12,777,864 23,294,136 36,043,224 68,779,776 130,759,592 114,535,948 93,644,276 85,131,244 78,624,208 86,335,286 — unresolved within range

Continued fraction of √n

√1,021,404 = [1010; (1, 1, 1, 4, 1, 1, 5, 3, 18, 1, 1, 2, 1, 3, 1, 1, 1, 2, 2, 32, 1, 2, 1, 1, …)]

Representations

In words
one million twenty-one thousand four hundred four
Ordinal
1021404th
Binary
11111001010111011100
Octal
3712734
Hexadecimal
0xF95DC
Base64
D5Xc
One's complement
4,293,945,891 (32-bit)
Scientific notation
1.021404 × 10⁶
As a duration
1,021,404 s = 11 days, 19 hours, 43 minutes, 24 seconds
In other bases
ternary (3) 1220220002210
quaternary (4) 3321113130
quinary (5) 230141104
senary (6) 33520420
septenary (7) 11452566
nonary (9) 1826083
undecimal (11) 63843a
duodecimal (12) 413110
tridecimal (13) 299ba7
tetradecimal (14) 1c8336
pentadecimal (15) 152989

As an angle

1,021,404° = 2,837 × 360° + 84°
84° ≈ 1.466 rad
Compass bearing: E (east)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓏺𓏺𓏺𓏺
Chinese
一百零二萬一千四百零四
Chinese (financial)
壹佰零貳萬壹仟肆佰零肆
In other modern scripts
Eastern Arabic ١٠٢١٤٠٤ Devanagari १०२१४०४ Bengali ১০২১৪০৪ Tamil ௧௦௨௧௪௦௪ Thai ๑๐๒๑๔๐๔ Tibetan ༡༠༢༡༤༠༤ Khmer ១០២១៤០៤ Lao ໑໐໒໑໔໐໔ Burmese ၁၀၂၁၄၀၄

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1021404, here are decompositions:

  • 17 + 1021387 = 1021404
  • 23 + 1021381 = 1021404
  • 31 + 1021373 = 1021404
  • 37 + 1021367 = 1021404
  • 71 + 1021333 = 1021404
  • 73 + 1021331 = 1021404
  • 101 + 1021303 = 1021404
  • 103 + 1021301 = 1021404

Showing the first eight; more decompositions exist.

Hex color
#0F95DC
RGB(15, 149, 220)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.149.220.

Address
0.15.149.220
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.149.220

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

Possible date

Could be parsed as a date. Most likely interpretation: Monday, January 2, 1404 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 1404-02-01 (DMMYYYY (Euro, single-digit day))
  • 1404-10-02 (MMDYYYY (US, single-digit day))
  • 1404-02-10 (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 1,021,404 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°.