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1,020,980

1,020,980 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.).

1,020,980 (one million twenty thousand nine hundred eighty) is an even 7-digit number. It is a composite number with 24 divisors, and factors as 2² × 5 × 71 × 719. Its proper divisors sum to 1,156,300, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF9434.

Abundant Number Arithmetic Number Cube-Free Evil Number Gapful Number Harshad / Niven Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
20
Digit product
0
Digital root
2
Palindrome
No
Bit width
20 bits
Reversed
890,201
Square (n²)
1,042,400,160,400
Cube (n³)
1,064,269,715,765,192,000
Divisor count
24
σ(n) — sum of divisors
2,177,280
φ(n) — Euler's totient
402,080
Sum of prime factors
799

Primality

Prime factorization: 2 2 × 5 × 71 × 719

Nearest primes: 1,020,979 (−1) · 1,020,989 (+9)

Divisors & multiples

All divisors (24)
1 · 2 · 4 · 5 · 10 · 20 · 71 · 142 · 284 · 355 · 710 · 719 · 1420 · 1438 · 2876 · 3595 · 7190 · 14380 · 51049 · 102098 · 204196 · 255245 · 510490 (half) · 1020980
Aliquot sum (sum of proper divisors): 1,156,300
Factor pairs (a × b = 1,020,980)
1 × 1020980
2 × 510490
4 × 255245
5 × 204196
10 × 102098
20 × 51049
71 × 14380
142 × 7190
284 × 3595
355 × 2876
710 × 1438
719 × 1420
First multiples
1,020,980 · 2,041,960 (double) · 3,062,940 · 4,083,920 · 5,104,900 · 6,125,880 · 7,146,860 · 8,167,840 · 9,188,820 · 10,209,800

Sums & aliquot sequence

As consecutive integers: 204,194 + 204,195 + 204,196 + 204,197 + 204,198 127,619 + 127,620 + … + 127,626 25,505 + 25,506 + … + 25,544 14,345 + 14,346 + … + 14,415
Aliquot sequence: 1,020,980 1,156,300 1,440,756 2,321,548 1,755,252 2,681,726 1,435,042 1,025,054 517,594 450,662 269,050 231,476 240,142 196,178 104,494 64,346 32,176 — unresolved within range

Continued fraction of √n

√1,020,980 = [1010; (2, 3, 2, 1, 1, 1, 3, 3, 14, 4, 3, 1, 1, 69, 8, 2, 3, 1, 2, 1, 36, 126, 3, 1, …)]

Representations

In words
one million twenty thousand nine hundred eighty
Ordinal
1020980th
Binary
11111001010000110100
Octal
3712064
Hexadecimal
0xF9434
Base64
D5Q0
One's complement
4,293,946,315 (32-bit)
Scientific notation
1.02098 × 10⁶
As a duration
1,020,980 s = 11 days, 19 hours, 36 minutes, 20 seconds
In other bases
ternary (3) 1220212112002
quaternary (4) 3321100310
quinary (5) 230132410
senary (6) 33514432
septenary (7) 11451422
nonary (9) 1825462
undecimal (11) 638094
duodecimal (12) 412a18
tridecimal (13) 29993c
tetradecimal (14) 1c8112
pentadecimal (15) 1527a5

As an angle

1,020,980° = 2,836 × 360° + 20°
20° ≈ 0.349 rad
Compass bearing: NNE (north-northeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋
Egyptian hieroglyphic
𓁨𓂍𓂍𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
Chinese
一百零二萬零九百八十
Chinese (financial)
壹佰零貳萬零玖佰捌拾
In other modern scripts
Eastern Arabic ١٠٢٠٩٨٠ Devanagari १०२०९८० Bengali ১০২০৯৮০ Tamil ௧௦௨௦௯௮௦ Thai ๑๐๒๐๙๘๐ Tibetan ༡༠༢༠༩༨༠ Khmer ១០២០៩៨០ Lao ໑໐໒໐໙໘໐ Burmese ၁၀၂၀၉၈၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1020980, here are decompositions:

  • 3 + 1020977 = 1020980
  • 7 + 1020973 = 1020980
  • 13 + 1020967 = 1020980
  • 19 + 1020961 = 1020980
  • 67 + 1020913 = 1020980
  • 73 + 1020907 = 1020980
  • 127 + 1020853 = 1020980
  • 139 + 1020841 = 1020980

Showing the first eight; more decompositions exist.

Hex color
#0F9434
RGB(15, 148, 52)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.148.52.

Address
0.15.148.52
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.148.52

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

Possible date

Could be parsed as a date. Most likely interpretation: Sunday, January 2, 0980 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 0980-02-01 (DMMYYYY (Euro, single-digit day))
  • 0980-10-02 (MMDYYYY (US, single-digit day))
  • 0980-02-10 (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 1,020,980 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°.