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520,988

520,988 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.).

520,988 (five hundred twenty thousand nine hundred eighty-eight) is an even 6-digit number. It is a composite number with 24 divisors, and factors as 2² × 13 × 43 × 233. Written other ways, in hexadecimal, 0x7F31C.

Arithmetic Number Cube-Free Deficient Number Evil Number

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
32
Digit product
0
Digital root
5
Palindrome
No
Bit width
19 bits
Reversed
889,025
Square (n²)
271,428,496,144
Cube (n³)
141,410,989,349,070,272
Divisor count
24
σ(n) — sum of divisors
1,009,008
φ(n) — Euler's totient
233,856
Sum of prime factors
293

Primality

Prime factorization: 2 2 × 13 × 43 × 233

Nearest primes: 520,981 (−7) · 521,009 (+21)

Divisors & multiples

All divisors (24)
1 · 2 · 4 · 13 · 26 · 43 · 52 · 86 · 172 · 233 · 466 · 559 · 932 · 1118 · 2236 · 3029 · 6058 · 10019 · 12116 · 20038 · 40076 · 130247 · 260494 (half) · 520988
Aliquot sum (sum of proper divisors): 488,020
Factor pairs (a × b = 520,988)
1 × 520988
2 × 260494
4 × 130247
13 × 40076
26 × 20038
43 × 12116
52 × 10019
86 × 6058
172 × 3029
233 × 2236
466 × 1118
559 × 932
First multiples
520,988 · 1,041,976 (double) · 1,562,964 · 2,083,952 · 2,604,940 · 3,125,928 · 3,646,916 · 4,167,904 · 4,688,892 · 5,209,880

Sums & aliquot sequence

As consecutive integers: 65,120 + 65,121 + … + 65,127 40,070 + 40,071 + … + 40,082 12,095 + 12,096 + … + 12,137 4,958 + 4,959 + … + 5,061
Aliquot sequence: 520,988 488,020 616,244 462,190 369,770 304,150 410,090 360,598 273,002 136,504 123,416 108,004 105,244 81,740 95,332 71,506 35,756 — unresolved within range

Continued fraction of √n

√520,988 = [721; (1, 3, 1, 7, 5, 1, 2, 3, 1, 13, 1, 1, 10, 1, 1, 110, 1, 1, 10, 1, 1, 13, 1, 3, …)]

Period length 32 — the block in parentheses repeats forever.

Representations

In words
five hundred twenty thousand nine hundred eighty-eight
Ordinal
520988th
Binary
1111111001100011100
Octal
1771434
Hexadecimal
0x7F31C
Base64
B/Mc
One's complement
4,294,446,307 (32-bit)
Scientific notation
5.20988 × 10⁵
As a duration
520,988 s = 6 days, 43 minutes, 8 seconds
In other bases
ternary (3) 222110122212
quaternary (4) 1333030130
quinary (5) 113132423
senary (6) 15055552
septenary (7) 4266626
nonary (9) 873585
undecimal (11) 326476
duodecimal (12) 2115b8
tridecimal (13) 1531a0
tetradecimal (14) d7c16
pentadecimal (15) a4578

As an angle

520,988° = 1,447 × 360° + 68°
68° ≈ 1.187 rad
Compass bearing: ENE (east-northeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵φκϡπηʹ
Chinese
五十二萬零九百八十八
Chinese (financial)
伍拾貳萬零玖佰捌拾捌
In other modern scripts
Eastern Arabic ٥٢٠٩٨٨ Devanagari ५२०९८८ Bengali ৫২০৯৮৮ Tamil ௫௨௦௯௮௮ Thai ๕๒๐๙๘๘ Tibetan ༥༢༠༩༨༨ Khmer ៥២០៩៨៨ Lao ໕໒໐໙໘໘ Burmese ၅၂၀၉၈၈

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 520988, here are decompositions:

  • 7 + 520981 = 520988
  • 19 + 520969 = 520988
  • 31 + 520957 = 520988
  • 67 + 520921 = 520988
  • 151 + 520837 = 520988
  • 229 + 520759 = 520988
  • 241 + 520747 = 520988
  • 271 + 520717 = 520988

Showing the first eight; more decompositions exist.

Hex color
#07F31C
RGB(7, 243, 28)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.7.243.28.

Address
0.7.243.28
Class
reserved
IPv4-mapped IPv6
::ffff:0.7.243.28

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

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 520,988 and was likely granted around 1894.

Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.

Position in π

The digit sequence 520988 first appears in π at position 165,705 of the decimal expansion (the 165,705ordinal-suffix:th digit after the integer 3).

Search range: the first 1,000,000 fractional digits of π. Any 6-digit-or-shorter string is virtually guaranteed to appear in there — the more interesting signal is the position.

Related reading

  • Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.