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1,022,690

1,022,690 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.).

1,022,690 (one million twenty-two thousand six hundred ninety) is an even 7-digit number. It is a composite number with 16 divisors, and factors as 2 × 5 × 31 × 3,299. Written other ways, in hexadecimal, 0xF9AE2.

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

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
20
Digit product
0
Digital root
2
Palindrome
No
Bit width
20 bits
Reversed
962,201
Square (n²)
1,045,894,836,100
Cube (n³)
1,069,626,189,931,109,000
Divisor count
16
σ(n) — sum of divisors
1,900,800
φ(n) — Euler's totient
395,760
Sum of prime factors
3,337

Primality

Prime factorization: 2 × 5 × 31 × 3299

Nearest primes: 1,022,689 (−1) · 1,022,701 (+11)

Divisors & multiples

All divisors (16)
1 · 2 · 5 · 10 · 31 · 62 · 155 · 310 · 3299 · 6598 · 16495 · 32990 · 102269 · 204538 · 511345 (half) · 1022690
Aliquot sum (sum of proper divisors): 878,110
Factor pairs (a × b = 1,022,690)
1 × 1022690
2 × 511345
5 × 204538
10 × 102269
31 × 32990
62 × 16495
155 × 6598
310 × 3299
First multiples
1,022,690 · 2,045,380 (double) · 3,068,070 · 4,090,760 · 5,113,450 · 6,136,140 · 7,158,830 · 8,181,520 · 9,204,210 · 10,226,900

Sums & aliquot sequence

As consecutive integers: 255,671 + 255,672 + 255,673 + 255,674 204,536 + 204,537 + 204,538 + 204,539 + 204,540 51,125 + 51,126 + … + 51,144 32,975 + 32,976 + … + 33,005
Aliquot sequence: 1,022,690 878,110 702,506 577,654 546,698 273,352 250,808 225,472 258,144 419,736 629,664 1,261,344 2,524,704 6,140,064 12,282,144 25,417,056 51,755,424 — unresolved within range

Continued fraction of √n

√1,022,690 = [1011; (3, 1, 1, 4, 8, 4, 9, 1, 11, 1, 1, 1, 16, 2, 1, 20, 1, 5, 2, 1, 1, 2, 2, 1, …)]

Representations

In words
one million twenty-two thousand six hundred ninety
Ordinal
1022690th
Binary
11111001101011100010
Octal
3715342
Hexadecimal
0xF9AE2
Base64
D5ri
One's complement
4,293,944,605 (32-bit)
Scientific notation
1.02269 × 10⁶
As a duration
1,022,690 s = 11 days, 20 hours, 4 minutes, 50 seconds
In other bases
ternary (3) 1220221212102
quaternary (4) 3321223202
quinary (5) 230211230
senary (6) 33530402
septenary (7) 11456414
nonary (9) 1827772
undecimal (11) 6393a9
duodecimal (12) 413a02
tridecimal (13) 29a656
tetradecimal (14) 1c89b4
pentadecimal (15) 153045

As an angle

1,022,690° = 2,840 × 360° + 290°
290° ≈ 5.061 rad
Compass bearing: WNW (west-northwest)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋
Egyptian hieroglyphic
𓁨𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
Chinese
一百零二萬二千六百九十
Chinese (financial)
壹佰零貳萬貳仟陸佰玖拾
In other modern scripts
Eastern Arabic ١٠٢٢٦٩٠ Devanagari १०२२६९० Bengali ১০২২৬৯০ Tamil ௧௦௨௨௬௯௦ Thai ๑๐๒๒๖๙๐ Tibetan ༡༠༢༢༦༩༠ Khmer ១០២២៦៩០ Lao ໑໐໒໒໖໙໐ Burmese ၁၀၂၂၆၉၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1022690, here are decompositions:

  • 7 + 1022683 = 1022690
  • 13 + 1022677 = 1022690
  • 37 + 1022653 = 1022690
  • 61 + 1022629 = 1022690
  • 79 + 1022611 = 1022690
  • 181 + 1022509 = 1022690
  • 199 + 1022491 = 1022690
  • 223 + 1022467 = 1022690

Showing the first eight; more decompositions exist.

Hex color
#0F9AE2
RGB(15, 154, 226)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.154.226.

Address
0.15.154.226
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.154.226

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

Possible date

Could be parsed as a date. Most likely interpretation: Thursday, January 2, 2690 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 2690-02-01 (DMMYYYY (Euro, single-digit day))
  • 2690-10-02 (MMDYYYY (US, single-digit day))
  • 2690-02-10 (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 1,022,690 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°.