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493,521

493,521 is a composite number, odd.

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.).

493,521 (four hundred ninety-three thousand five hundred twenty-one) is an odd 6-digit number. It is a composite number with 16 divisors, and factors as 3 × 7 × 71 × 331. It is the 993rd triangular number. Written other ways, in hexadecimal, 0x787D1.

Arithmetic Number Cube-Free Deficient Number Hexagonal Odious Number Pernicious Number Recamán's Sequence Squarefree Triangular

Interestingness

Properties

Parity
Odd
Digit count
6
Digit sum
24
Digit product
1,080
Digital root
6
Palindrome
No
Bit width
19 bits
Reversed
125,394
Recamán's sequence
a(97,797) = 493,521
Square (n²)
243,562,977,441
Cube (n³)
120,203,444,189,659,761
Divisor count
16
σ(n) — sum of divisors
764,928
φ(n) — Euler's totient
277,200
Sum of prime factors
412

Primality

Prime factorization: 3 × 7 × 71 × 331

Nearest primes: 493,481 (−40) · 493,523 (+2)

Divisors & multiples

All divisors (16)
1 · 3 · 7 · 21 · 71 · 213 · 331 · 497 · 993 · 1491 · 2317 · 6951 · 23501 · 70503 · 164507 · 493521
Aliquot sum (sum of proper divisors): 271,407
Factor pairs (a × b = 493,521)
1 × 493521
3 × 164507
7 × 70503
21 × 23501
71 × 6951
213 × 2317
331 × 1491
497 × 993
First multiples
493,521 · 987,042 (double) · 1,480,563 · 1,974,084 · 2,467,605 · 2,961,126 · 3,454,647 · 3,948,168 · 4,441,689 · 4,935,210

Sums & aliquot sequence

As consecutive integers: 246,760 + 246,761 164,506 + 164,507 + 164,508 82,251 + 82,252 + 82,253 + 82,254 + 82,255 + 82,256 70,500 + 70,501 + … + 70,506
Aliquot sequence: 493,521 271,407 90,473 1 0 — terminates at zero

Continued fraction of √n

√493,521 = [702; (1, 1, 23, 3, 5, 2, 1, 31, 1, 86, 1, 5, 2, 2, 1, 12, 5, 1, 1, 2, 2, 1, 1, 1, …)]

Representations

In words
four hundred ninety-three thousand five hundred twenty-one
Ordinal
493521st
Binary
1111000011111010001
Octal
1703721
Hexadecimal
0x787D1
Base64
B4fR
One's complement
4,294,473,774 (32-bit)
Scientific notation
4.93521 × 10⁵
As a duration
493,521 s = 5 days, 17 hours, 5 minutes, 21 seconds
In other bases
ternary (3) 221001222120
quaternary (4) 1320133101
quinary (5) 111243041
senary (6) 14324453
septenary (7) 4123560
nonary (9) 831876
undecimal (11) 307876
duodecimal (12) 1b9729
tridecimal (13) 143832
tetradecimal (14) cbbd7
pentadecimal (15) 9b366

As an angle

493,521° = 1,370 × 360° + 321°
321° ≈ 5.603 rad
Compass bearing: NW (northwest)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹
Egyptian hieroglyphic
𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓏺
Greek (Milesian)
͵υϟγφκαʹ
Chinese
四十九萬三千五百二十一
Chinese (financial)
肆拾玖萬參仟伍佰貳拾壹
In other modern scripts
Eastern Arabic ٤٩٣٥٢١ Devanagari ४९३५२१ Bengali ৪৯৩৫২১ Tamil ௪௯௩௫௨௧ Thai ๔๙๓๕๒๑ Tibetan ༤༩༣༥༢༡ Khmer ៤៩៣៥២១ Lao ໔໙໓໕໒໑ Burmese ၄၉၃၅၂၁

Also seen as

Hex color
#0787D1
RGB(7, 135, 209)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.7.135.209.

Address
0.7.135.209
Class
reserved
IPv4-mapped IPv6
::ffff:0.7.135.209

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 493,521 and was likely granted around 1893.

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

Related reading

  • Triangular numbers — 1, 3, 6, 10, 15 … the counting numbers stacked into triangles, and Gauss's famous shortcut for summing them.
  • Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.