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1,020,320

1,020,320 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.).

1,020,320 (one million twenty thousand three hundred twenty) is an even 7-digit number. It is a composite number with 48 divisors, and factors as 2⁵ × 5 × 7 × 911. Its proper divisors sum to 1,737,568, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF91A0.

Abundant Number Arithmetic Number Gapful Number Harshad / Niven Odious Number Practical Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
8
Digit product
0
Digital root
8
Palindrome
No
Bit width
20 bits
Reversed
230,201
Square (n²)
1,041,052,902,400
Cube (n³)
1,062,207,097,376,768,000
Divisor count
48
σ(n) — sum of divisors
2,757,888
φ(n) — Euler's totient
349,440
Sum of prime factors
933

Primality

Prime factorization: 2 5 × 5 × 7 × 911

Nearest primes: 1,020,301 (−19) · 1,020,329 (+9)

Divisors & multiples

All divisors (48)
1 · 2 · 4 · 5 · 7 · 8 · 10 · 14 · 16 · 20 · 28 · 32 · 35 · 40 · 56 · 70 · 80 · 112 · 140 · 160 · 224 · 280 · 560 · 911 · 1120 · 1822 · 3644 · 4555 · 6377 · 7288 · 9110 · 12754 · 14576 · 18220 · 25508 · 29152 · 31885 · 36440 · 51016 · 63770 · 72880 · 102032 · 127540 · 145760 · 204064 · 255080 · 510160 (half) · 1020320
Aliquot sum (sum of proper divisors): 1,737,568
Factor pairs (a × b = 1,020,320)
1 × 1020320
2 × 510160
4 × 255080
5 × 204064
7 × 145760
8 × 127540
10 × 102032
14 × 72880
16 × 63770
20 × 51016
28 × 36440
32 × 31885
35 × 29152
40 × 25508
56 × 18220
70 × 14576
80 × 12754
112 × 9110
140 × 7288
160 × 6377
224 × 4555
280 × 3644
560 × 1822
911 × 1120
First multiples
1,020,320 · 2,040,640 (double) · 3,060,960 · 4,081,280 · 5,101,600 · 6,121,920 · 7,142,240 · 8,162,560 · 9,182,880 · 10,203,200

Sums & aliquot sequence

As consecutive integers: 204,062 + 204,063 + 204,064 + 204,065 + 204,066 145,757 + 145,758 + … + 145,763 29,135 + 29,136 + … + 29,169 15,911 + 15,912 + … + 15,974
Aliquot sequence: 1,020,320 1,737,568 2,172,464 3,043,720 3,954,680 4,943,440 6,750,008 5,973,472 5,786,864 5,425,216 5,458,176 11,122,752 19,865,248 25,587,740 29,957,092 27,831,548 22,525,444 — unresolved within range

Continued fraction of √n

√1,020,320 = [1010; (9, 5, 2, 16, 4, 6, 2, 1, 1, 1, 5, 1, 6, 1, 1, 1, 1, 6, 1, 1, 2, 2, 9, 1, …)]

Representations

In words
one million twenty thousand three hundred twenty
Ordinal
1020320th
Binary
11111001000110100000
Octal
3710640
Hexadecimal
0xF91A0
Base64
D5Gg
One's complement
4,293,946,975 (32-bit)
Scientific notation
1.02032 × 10⁶
As a duration
1,020,320 s = 11 days, 19 hours, 25 minutes, 20 seconds
In other bases
ternary (3) 1220211121122
quaternary (4) 3321012200
quinary (5) 230122240
senary (6) 33511412
septenary (7) 11446460
nonary (9) 1824548
undecimal (11) 637644
duodecimal (12) 412568
tridecimal (13) 299552
tetradecimal (14) 1c7ba0
pentadecimal (15) 1524b5

As an angle

1,020,320° = 2,834 × 360° + 80°
80° ≈ 1.396 rad
Compass bearing: E (east)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋
Egyptian hieroglyphic
𓁨𓂍𓂍𓍢𓍢𓍢𓎆𓎆
Chinese
一百零二萬零三百二十
Chinese (financial)
壹佰零貳萬零參佰貳拾
In other modern scripts
Eastern Arabic ١٠٢٠٣٢٠ Devanagari १०२०३२० Bengali ১০২০৩২০ Tamil ௧௦௨௦௩௨௦ Thai ๑๐๒๐๓๒๐ Tibetan ༡༠༢༠༣༢༠ Khmer ១០២០៣២០ Lao ໑໐໒໐໓໒໐ Burmese ၁၀၂၀၃၂၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1020320, here are decompositions:

  • 19 + 1020301 = 1020320
  • 61 + 1020259 = 1020320
  • 73 + 1020247 = 1020320
  • 97 + 1020223 = 1020320
  • 157 + 1020163 = 1020320
  • 163 + 1020157 = 1020320
  • 211 + 1020109 = 1020320
  • 241 + 1020079 = 1020320

Showing the first eight; more decompositions exist.

Hex color
#0F91A0
RGB(15, 145, 160)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.145.160.

Address
0.15.145.160
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.145.160

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

Possible date

Could be parsed as a date. Most likely interpretation: Friday, January 2, 0320 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 0320-02-01 (DMMYYYY (Euro, single-digit day))
  • 0320-10-02 (MMDYYYY (US, single-digit day))
  • 0320-02-10 (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 1,020,320 and was likely granted around 1911.

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°.