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1,022,080

1,022,080 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.).

1,022,080 (one million twenty-two thousand eighty) is an even 7-digit number. It is a composite number with 32 divisors, and factors as 2⁷ × 5 × 1,597. Its proper divisors sum to 1,422,860, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF9880.

Abundant Number Evil Number Gapful Number Recamán's Sequence Refactorable Number Self Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
13
Digit product
0
Digital root
4
Palindrome
No
Bit width
20 bits
Reversed
802,201
Recamán's sequence
a(372,167) = 1,022,080
Square (n²)
1,044,647,526,400
Cube (n³)
1,067,713,343,782,912,000
Divisor count
32
σ(n) — sum of divisors
2,444,940
φ(n) — Euler's totient
408,576
Sum of prime factors
1,616

Primality

Prime factorization: 2 7 × 5 × 1597

Nearest primes: 1,022,071 (−9) · 1,022,083 (+3)

Divisors & multiples

All divisors (32)
1 · 2 · 4 · 5 · 8 · 10 · 16 · 20 · 32 · 40 · 64 · 80 · 128 · 160 · 320 · 640 · 1597 · 3194 · 6388 · 7985 · 12776 · 15970 · 25552 · 31940 · 51104 · 63880 · 102208 · 127760 · 204416 · 255520 · 511040 (half) · 1022080
Aliquot sum (sum of proper divisors): 1,422,860
Factor pairs (a × b = 1,022,080)
1 × 1022080
2 × 511040
4 × 255520
5 × 204416
8 × 127760
10 × 102208
16 × 63880
20 × 51104
32 × 31940
40 × 25552
64 × 15970
80 × 12776
128 × 7985
160 × 6388
320 × 3194
640 × 1597
First multiples
1,022,080 · 2,044,160 (double) · 3,066,240 · 4,088,320 · 5,110,400 · 6,132,480 · 7,154,560 · 8,176,640 · 9,198,720 · 10,220,800

Sums & aliquot sequence

As a sum of two squares: 232² + 984² = 648² + 776²
As consecutive integers: 204,414 + 204,415 + 204,416 + 204,417 + 204,418 3,865 + 3,866 + … + 4,120 159 + 160 + … + 1,438
Aliquot sequence: 1,022,080 1,422,860 1,565,188 1,317,692 1,106,884 830,170 800,198 595,546 471,494 235,750 235,994 173,542 86,774 46,546 29,432 30,208 31,172 — unresolved within range

Continued fraction of √n

√1,022,080 = [1010; (1, 48, 3, 6, 3, 2, 1, 5, 6, 6, 7, 3, 2, 1, 7, 1, 3, 5, 4, 1, 1, 224, 9, 5, …)]

Representations

In words
one million twenty-two thousand eighty
Ordinal
1022080th
Binary
11111001100010000000
Octal
3714200
Hexadecimal
0xF9880
Base64
D5iA
One's complement
4,293,945,215 (32-bit)
Scientific notation
1.02208 × 10⁶
As a duration
1,022,080 s = 11 days, 19 hours, 54 minutes, 40 seconds
In other bases
ternary (3) 1220221000211
quaternary (4) 3321202000
quinary (5) 230201310
senary (6) 33523504
septenary (7) 11454553
nonary (9) 1827024
undecimal (11) 6389a4
duodecimal (12) 413594
tridecimal (13) 29a2a7
tetradecimal (14) 1c869a
pentadecimal (15) 152c8a

As an angle

1,022,080° = 2,839 × 360° + 40°
40° ≈ 0.698 rad
Compass bearing: NE (northeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋
Egyptian hieroglyphic
𓁨𓂍𓂍𓆼𓆼𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
Chinese
一百零二萬二千零八十
Chinese (financial)
壹佰零貳萬貳仟零捌拾
In other modern scripts
Eastern Arabic ١٠٢٢٠٨٠ Devanagari १०२२०८० Bengali ১০২২০৮০ Tamil ௧௦௨௨௦௮௦ Thai ๑๐๒๒๐๘๐ Tibetan ༡༠༢༢༠༨༠ Khmer ១០២២០៨០ Lao ໑໐໒໒໐໘໐ Burmese ၁၀၂၂၀၈၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1022080, here are decompositions:

  • 47 + 1022033 = 1022080
  • 107 + 1021973 = 1022080
  • 173 + 1021907 = 1022080
  • 281 + 1021799 = 1022080
  • 383 + 1021697 = 1022080
  • 419 + 1021661 = 1022080
  • 503 + 1021577 = 1022080
  • 509 + 1021571 = 1022080

Showing the first eight; more decompositions exist.

Hex color
#0F9880
RGB(15, 152, 128)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.152.128.

Address
0.15.152.128
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.152.128

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

Possible date

Could be parsed as a date. Most likely interpretation: Tuesday, January 2, 2080 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 2080-02-01 (DMMYYYY (Euro, single-digit day))
  • 2080-10-02 (MMDYYYY (US, single-digit day))
  • 2080-02-10 (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 1,022,080 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°.