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501,664

501,664 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.).

501,664 (five hundred one thousand six hundred sixty-four) is an even 6-digit number. It is a composite number with 24 divisors, and factors as 2⁵ × 61 × 257. Its proper divisors sum to 506,084, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x7A7A0.

Abundant Number Evil Number Practical Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
22
Digit product
0
Digital root
4
Palindrome
No
Bit width
19 bits
Reversed
466,105
Square (n²)
251,666,768,896
Cube (n³)
126,252,157,951,442,944
Divisor count
24
σ(n) — sum of divisors
1,007,748
φ(n) — Euler's totient
245,760
Sum of prime factors
328

Primality

Prime factorization: 2 5 × 61 × 257

Nearest primes: 501,659 (−5) · 501,691 (+27)

Divisors & multiples

All divisors (24)
1 · 2 · 4 · 8 · 16 · 32 · 61 · 122 · 244 · 257 · 488 · 514 · 976 · 1028 · 1952 · 2056 · 4112 · 8224 · 15677 · 31354 · 62708 · 125416 · 250832 (half) · 501664
Aliquot sum (sum of proper divisors): 506,084
Factor pairs (a × b = 501,664)
1 × 501664
2 × 250832
4 × 125416
8 × 62708
16 × 31354
32 × 15677
61 × 8224
122 × 4112
244 × 2056
257 × 1952
488 × 1028
514 × 976
First multiples
501,664 · 1,003,328 (double) · 1,504,992 · 2,006,656 · 2,508,320 · 3,009,984 · 3,511,648 · 4,013,312 · 4,514,976 · 5,016,640

Sums & aliquot sequence

As a sum of two squares: 20² + 708² = 108² + 700²
As consecutive integers: 8,194 + 8,195 + … + 8,254 7,807 + 7,808 + … + 7,870 1,824 + 1,825 + … + 2,080
Aliquot sequence: 501,664 506,084 426,316 387,644 290,740 319,856 299,896 292,304 274,066 177,518 113,002 56,504 64,696 56,624 53,116 55,412 55,468 — unresolved within range

Continued fraction of √n

√501,664 = [708; (3, 1, 1, 5, 1, 1, 1, 3, 1, 3, 4, 5, 1, 2, 94, 11, 1, 2, 3, 2, 1, 1, 2, 17, …)]

Representations

In words
five hundred one thousand six hundred sixty-four
Ordinal
501664th
Binary
1111010011110100000
Octal
1723640
Hexadecimal
0x7A7A0
Base64
B6eg
One's complement
4,294,465,631 (32-bit)
Scientific notation
5.01664 × 10⁵
As a duration
501,664 s = 5 days, 19 hours, 21 minutes, 4 seconds
In other bases
ternary (3) 221111011011
quaternary (4) 1322132200
quinary (5) 112023124
senary (6) 14430304
septenary (7) 4156402
nonary (9) 844134
undecimal (11) 3129a9
duodecimal (12) 202394
tridecimal (13) 147457
tetradecimal (14) d0b72
pentadecimal (15) 9d994

As an angle

501,664° = 1,393 × 360° + 184°
184° ≈ 3.211 rad
Compass bearing: S (south)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹 𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓆐𓆐𓆐𓆐𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺
Greek (Milesian)
͵φαχξδʹ
Chinese
五十萬一千六百六十四
Chinese (financial)
伍拾萬壹仟陸佰陸拾肆
In other modern scripts
Eastern Arabic ٥٠١٦٦٤ Devanagari ५०१६६४ Bengali ৫০১৬৬৪ Tamil ௫௦௧௬௬௪ Thai ๕๐๑๖๖๔ Tibetan ༥༠༡༦༦༤ Khmer ៥០១៦៦៤ Lao ໕໐໑໖໖໔ Burmese ၅၀၁၆၆၄

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 501664, here are decompositions:

  • 5 + 501659 = 501664
  • 41 + 501623 = 501664
  • 47 + 501617 = 501664
  • 71 + 501593 = 501664
  • 101 + 501563 = 501664
  • 263 + 501401 = 501664
  • 281 + 501383 = 501664
  • 347 + 501317 = 501664

Showing the first eight; more decompositions exist.

Hex color
#07A7A0
RGB(7, 167, 160)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.7.167.160.

Address
0.7.167.160
Class
reserved
IPv4-mapped IPv6
::ffff:0.7.167.160

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 501,664 and was likely granted around 1893.

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

Position in π

The digit sequence 501664 first appears in π at position 384,124 of the decimal expansion (the 384,124ordinal-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°.