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1,055,520

1,055,520 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.).

1,055,520 (one million fifty-five thousand five hundred twenty) is an even 7-digit number. It is a composite number with 72 divisors, and factors as 2⁵ × 3² × 5 × 733. Its proper divisors sum to 2,551,356, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x101B20.

Abundant Number Evil Number Gapful Number Harshad / Niven Practical Number Refactorable Number Weird Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
18
Digit product
0
Digital root
9
Palindrome
No
Bit width
21 bits
Reversed
255,501
Square (n²)
1,114,122,470,400
Cube (n³)
1,175,978,549,956,608,000
Divisor count
72
σ(n) — sum of divisors
3,606,876
φ(n) — Euler's totient
281,088
Sum of prime factors
754

Primality

Prime factorization: 2 5 × 3 2 × 5 × 733

Nearest primes: 1,055,503 (−17) · 1,055,531 (+11)

Divisors & multiples

All divisors (72)
1 · 2 · 3 · 4 · 5 · 6 · 8 · 9 · 10 · 12 · 15 · 16 · 18 · 20 · 24 · 30 · 32 · 36 · 40 · 45 · 48 · 60 · 72 · 80 · 90 · 96 · 120 · 144 · 160 · 180 · 240 · 288 · 360 · 480 · 720 · 733 · 1440 · 1466 · 2199 · 2932 · 3665 · 4398 · 5864 · 6597 · 7330 · 8796 · 10995 · 11728 · 13194 · 14660 · 17592 · 21990 · 23456 · 26388 · 29320 · 32985 · 35184 · 43980 · 52776 · 58640 · 65970 · 70368 · 87960 · 105552 · 117280 · 131940 · 175920 · 211104 · 263880 · 351840 · 527760 (half) · 1055520
Aliquot sum (sum of proper divisors): 2,551,356
Factor pairs (a × b = 1,055,520)
1 × 1055520
2 × 527760
3 × 351840
4 × 263880
5 × 211104
6 × 175920
8 × 131940
9 × 117280
10 × 105552
12 × 87960
15 × 70368
16 × 65970
18 × 58640
20 × 52776
24 × 43980
30 × 35184
32 × 32985
36 × 29320
40 × 26388
45 × 23456
48 × 21990
60 × 17592
72 × 14660
80 × 13194
90 × 11728
96 × 10995
120 × 8796
144 × 7330
160 × 6597
180 × 5864
240 × 4398
288 × 3665
360 × 2932
480 × 2199
720 × 1466
733 × 1440
First multiples
1,055,520 · 2,111,040 (double) · 3,166,560 · 4,222,080 · 5,277,600 · 6,333,120 · 7,388,640 · 8,444,160 · 9,499,680 · 10,555,200

Sums & aliquot sequence

As a sum of two squares: 252² + 996² = 396² + 948²
As consecutive integers: 351,839 + 351,840 + 351,841 211,102 + 211,103 + 211,104 + 211,105 + 211,106 117,276 + 117,277 + … + 117,284 70,361 + 70,362 + … + 70,375
Aliquot sequence: 1,055,520 → 2,551,356 → 3,959,148 → 5,574,684 → 7,432,940 → 8,300,932 → 6,694,524 → 10,227,836 → 8,796,484 → 6,597,370 → 6,869,510 → 5,681,386 → 2,881,718 → 2,058,394 → 1,463,054 → 925,474 → 733,406 — unresolved within range

Continued fraction of √n

√1,055,520 = [1027; (2, 1, 1, 2, 13, 1, 7, 1, 2, 513, 2, 1, 7, 1, 13, 2, 1, 1, 2, 2054)]

Period length 20 — the block in parentheses repeats forever.

Representations

In words
one million fifty-five thousand five hundred twenty
Ordinal
1055520th
Binary
100000001101100100000
Octal
4015440
Hexadecimal
0x101B20
Base64
EBsg
One's complement
4,293,911,775 (32-bit)
Scientific notation
1.05552 × 10⁶
As a duration
1,055,520 s = 12 days, 5 hours, 12 minutes
In other bases
ternary (3) 1222121220100
quaternary (4) 10001230200
quinary (5) 232234040
senary (6) 34342400
septenary (7) 11654214
nonary (9) 1877810
undecimal (11) 661034
duodecimal (12) 42aa00
tridecimal (13) 2ac58b
tetradecimal (14) 1d6944
pentadecimal (15) 15cb30

As an angle

1,055,520° = 2,932 × 360°
0° ≈ 0 rad
Compass bearing: N (north)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒁹𒁹 ·
Egyptian hieroglyphic
𓁨𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓎆𓎆
Chinese
一百零五萬五千五百二十
Chinese (financial)
壹佰零伍萬伍仟伍佰貳拾
In other modern scripts
Eastern Arabic ١٠٥٥٥٢٠ Devanagari १०५५५२० Bengali ১০৫৫৫২০ Tamil ௧௦௫௫௫௨௦ Thai ๑๐๕๕๕๒๐ Tibetan ༡༠༥༥༥༢༠ Khmer ១០៥៥៥២០ Lao ໑໐໕໕໕໒໐ Burmese ၁၀၅၅၅၂၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1055520, here are decompositions:

  • 17 + 1055503 = 1055520
  • 19 + 1055501 = 1055520
  • 31 + 1055489 = 1055520
  • 83 + 1055437 = 1055520
  • 97 + 1055423 = 1055520
  • 107 + 1055413 = 1055520
  • 113 + 1055407 = 1055520
  • 149 + 1055371 = 1055520

Showing the first eight; more decompositions exist.

Hex color
#101B20
RGB(16, 27, 32)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.16.27.32.

Address
0.16.27.32
Class
reserved
IPv4-mapped IPv6
::ffff:0.16.27.32

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

Possible date

Could be parsed as a date. Most likely interpretation: Monday, January 5, 5520 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 5520-05-01 (DMMYYYY (Euro, single-digit day))
  • 5520-10-05 (MMDYYYY (US, single-digit day))
  • 5520-05-10 (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 1,055,520 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°.