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999,240

999,240 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.).

999,240 (nine hundred ninety-nine thousand two hundred forty) is an even 6-digit number. It is a composite number with 64 divisors, and factors as 2³ × 3 × 5 × 11 × 757. Its proper divisors sum to 2,275,320, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF3F48.

Abundant Number Arithmetic Number Evil Number Happy Number Harshad / Niven Practical Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
33
Digit product
0
Digital root
6
Palindrome
No
Bit width
20 bits
Reversed
42,999
Square (n²)
998,480,577,600
Cube (n³)
997,721,732,361,024,000
Divisor count
64
σ(n) — sum of divisors
3,274,560
φ(n) — Euler's totient
241,920
Sum of prime factors
782

Primality

Prime factorization: 2 3 × 3 × 5 × 11 × 757

Nearest primes: 999,239 (−1) · 999,269 (+29)

Divisors & multiples

All divisors (64)
1 · 2 · 3 · 4 · 5 · 6 · 8 · 10 · 11 · 12 · 15 · 20 · 22 · 24 · 30 · 33 · 40 · 44 · 55 · 60 · 66 · 88 · 110 · 120 · 132 · 165 · 220 · 264 · 330 · 440 · 660 · 757 · 1320 · 1514 · 2271 · 3028 · 3785 · 4542 · 6056 · 7570 · 8327 · 9084 · 11355 · 15140 · 16654 · 18168 · 22710 · 24981 · 30280 · 33308 · 41635 · 45420 · 49962 · 66616 · 83270 · 90840 · 99924 · 124905 · 166540 · 199848 · 249810 · 333080 · 499620 (half) · 999240
Aliquot sum (sum of proper divisors): 2,275,320
Factor pairs (a × b = 999,240)
1 × 999240
2 × 499620
3 × 333080
4 × 249810
5 × 199848
6 × 166540
8 × 124905
10 × 99924
11 × 90840
12 × 83270
15 × 66616
20 × 49962
22 × 45420
24 × 41635
30 × 33308
33 × 30280
40 × 24981
44 × 22710
55 × 18168
60 × 16654
66 × 15140
88 × 11355
110 × 9084
120 × 8327
132 × 7570
165 × 6056
220 × 4542
264 × 3785
330 × 3028
440 × 2271
660 × 1514
757 × 1320
First multiples
999,240 · 1,998,480 (double) · 2,997,720 · 3,996,960 · 4,996,200 · 5,995,440 · 6,994,680 · 7,993,920 · 8,993,160 · 9,992,400

Sums & aliquot sequence

As consecutive integers: 333,079 + 333,080 + 333,081 199,846 + 199,847 + 199,848 + 199,849 + 199,850 90,835 + 90,836 + … + 90,845 66,609 + 66,610 + … + 66,623
Aliquot sequence: 999,240 2,275,320 4,677,000 9,924,600 27,573,000 79,355,640 222,237,960 572,918,520 1,145,837,400 2,615,238,840 5,230,478,040 10,460,956,440 — keeps growing

Continued fraction of √n

√999,240 = [999; (1, 1, 1, 1, 1, 2, 2, 5, 8, 2, 7, 1, 8, 2, 2, 1, 1, 40, 4, 1, 1, 1, 1, 2, …)]

Period length 54 — the block in parentheses repeats forever.

Representations

In words
nine hundred ninety-nine thousand two hundred forty
Ordinal
999240th
Binary
11110011111101001000
Octal
3637510
Hexadecimal
0xF3F48
Base64
Dz9I
One's complement
4,293,968,055 (32-bit)
Scientific notation
9.9924 × 10⁵
As a duration
999,240 s = 11 days, 13 hours, 34 minutes
In other bases
ternary (3) 1212202200220
quaternary (4) 3303331020
quinary (5) 223433430
senary (6) 33230040
septenary (7) 11331144
nonary (9) 1782626
undecimal (11) 622820
duodecimal (12) 402320
tridecimal (13) 28ca88
tetradecimal (14) 1c0224
pentadecimal (15) 14b110

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 ·
Egyptian hieroglyphic
𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓎆𓎆𓎆𓎆
Greek (Milesian)
͵ϡϟθσμʹ
Chinese
九十九萬九千二百四十
Chinese (financial)
玖拾玖萬玖仟貳佰肆拾
In other modern scripts
Eastern Arabic ٩٩٩٢٤٠ Devanagari ९९९२४० Bengali ৯৯৯২৪০ Tamil ௯௯௯௨௪௦ Thai ๙๙๙๒๔๐ Tibetan ༩༩༩༢༤༠ Khmer ៩៩៩២៤០ Lao ໙໙໙໒໔໐ Burmese ၉၉၉၂၄၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 999240, here are decompositions:

  • 7 + 999233 = 999240
  • 19 + 999221 = 999240
  • 23 + 999217 = 999240
  • 41 + 999199 = 999240
  • 59 + 999181 = 999240
  • 71 + 999169 = 999240
  • 107 + 999133 = 999240
  • 139 + 999101 = 999240

Showing the first eight; more decompositions exist.

Hex color
#0F3F48
RGB(15, 63, 72)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.63.72.

Address
0.15.63.72
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.63.72

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 999,240 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°.