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1,024,990

1,024,990 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.).

1,024,990 (one million twenty-four thousand nine hundred ninety) is an even 7-digit number. It is a composite number with 8 divisors, and factors as 2 × 5 × 102,499. Written other ways, in hexadecimal, 0xFA3DE.

Arithmetic Number Cube-Free Deficient Number Evil Number Gapful Number Sphenic Number Squarefree

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
25
Digit product
0
Digital root
7
Palindrome
No
Bit width
20 bits
Reversed
994,201
Square (n²)
1,050,604,500,100
Cube (n³)
1,076,859,106,557,499,000
Divisor count
8
σ(n) — sum of divisors
1,845,000
φ(n) — Euler's totient
409,992
Sum of prime factors
102,506

Primality

Prime factorization: 2 × 5 × 102499

Nearest primes: 1,024,987 (−3) · 1,024,997 (+7)

Divisors & multiples

All divisors (8)
1 · 2 · 5 · 10 · 102499 · 204998 · 512495 (half) · 1024990
Aliquot sum (sum of proper divisors): 820,010
Factor pairs (a × b = 1,024,990)
1 × 1024990
2 × 512495
5 × 204998
10 × 102499
First multiples
1,024,990 · 2,049,980 (double) · 3,074,970 · 4,099,960 · 5,124,950 · 6,149,940 · 7,174,930 · 8,199,920 · 9,224,910 · 10,249,900

Sums & aliquot sequence

As consecutive integers: 256,246 + 256,247 + 256,248 + 256,249 204,996 + 204,997 + 204,998 + 204,999 + 205,000 51,240 + 51,241 + … + 51,259
Aliquot sequence: 1,024,990 820,010 691,126 363,314 259,534 175,922 87,964 65,980 72,620 79,924 78,836 59,134 29,570 23,674 19,526 12,058 6,032 — unresolved within range

Continued fraction of √n

√1,024,990 = [1012; (2, 2, 1, 1, 5, 17, 1, 1, 2, 1, 1, 9, 16, 1, 10, 4, 13, 2, 1, 8, 1, 3, 1, 2, …)]

Representations

In words
one million twenty-four thousand nine hundred ninety
Ordinal
1024990th
Binary
11111010001111011110
Octal
3721736
Hexadecimal
0xFA3DE
Base64
D6Pe
One's complement
4,293,942,305 (32-bit)
Scientific notation
1.02499 × 10⁶
As a duration
1,024,990 s = 11 days, 20 hours, 43 minutes, 10 seconds
In other bases
ternary (3) 1221002000121
quaternary (4) 3322033132
quinary (5) 230244430
senary (6) 33545154
septenary (7) 11466211
nonary (9) 1832017
undecimal (11) 6400aa
duodecimal (12) 4151ba
tridecimal (13) 29b705
tetradecimal (14) 1c9778
pentadecimal (15) 153a7a

As an angle

1,024,990° = 2,847 × 360° + 70°
70° ≈ 1.222 rad
Compass bearing: ENE (east-northeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋
Egyptian hieroglyphic
𓁨𓂍𓂍𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
Chinese
一百零二萬四千九百九十
Chinese (financial)
壹佰零貳萬肆仟玖佰玖拾
In other modern scripts
Eastern Arabic ١٠٢٤٩٩٠ Devanagari १०२४९९० Bengali ১০২৪৯৯০ Tamil ௧௦௨௪௯௯௦ Thai ๑๐๒๔๙๙๐ Tibetan ༡༠༢༤༩༩༠ Khmer ១០២៤៩៩០ Lao ໑໐໒໔໙໙໐ Burmese ၁၀၂၄၉၉၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1024990, here are decompositions:

  • 3 + 1024987 = 1024990
  • 47 + 1024943 = 1024990
  • 59 + 1024931 = 1024990
  • 89 + 1024901 = 1024990
  • 107 + 1024883 = 1024990
  • 137 + 1024853 = 1024990
  • 167 + 1024823 = 1024990
  • 191 + 1024799 = 1024990

Showing the first eight; more decompositions exist.

Hex color
#0FA3DE
RGB(15, 163, 222)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.163.222.

Address
0.15.163.222
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.163.222

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

Possible date

Could be parsed as a date. Most likely interpretation: Saturday, January 2, 4990 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 4990-02-01 (DMMYYYY (Euro, single-digit day))
  • 4990-10-02 (MMDYYYY (US, single-digit day))
  • 4990-02-10 (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 1,024,990 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°.