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1,005,540

1,005,540 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.).

1,005,540 (one million five thousand five hundred forty) is an even 7-digit number. It is a composite number with 24 divisors, and factors as 2² × 3 × 5 × 16,759. Its proper divisors sum to 1,810,140, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF57E4.

Abundant Number Arithmetic Number Cube-Free Gapful Number Harshad / Niven Odious Number Pernicious Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
15
Digit product
0
Digital root
6
Palindrome
No
Bit width
20 bits
Reversed
455,001
Square (n²)
1,011,110,691,600
Cube (n³)
1,016,712,244,831,464,000
Divisor count
24
σ(n) — sum of divisors
2,815,680
φ(n) — Euler's totient
268,128
Sum of prime factors
16,771

Primality

Prime factorization: 2 2 × 3 × 5 × 16759

Nearest primes: 1,005,527 (−13) · 1,005,541 (+1)

Divisors & multiples

All divisors (24)
1 · 2 · 3 · 4 · 5 · 6 · 10 · 12 · 15 · 20 · 30 · 60 · 16759 · 33518 · 50277 · 67036 · 83795 · 100554 · 167590 · 201108 · 251385 · 335180 · 502770 (half) · 1005540
Aliquot sum (sum of proper divisors): 1,810,140
Factor pairs (a × b = 1,005,540)
1 × 1005540
2 × 502770
3 × 335180
4 × 251385
5 × 201108
6 × 167590
10 × 100554
12 × 83795
15 × 67036
20 × 50277
30 × 33518
60 × 16759
First multiples
1,005,540 · 2,011,080 (double) · 3,016,620 · 4,022,160 · 5,027,700 · 6,033,240 · 7,038,780 · 8,044,320 · 9,049,860 · 10,055,400

Sums & aliquot sequence

As consecutive integers: 335,179 + 335,180 + 335,181 201,106 + 201,107 + 201,108 + 201,109 + 201,110 125,689 + 125,690 + … + 125,696 67,029 + 67,030 + … + 67,043
Aliquot sequence: 1,005,540 1,810,140 3,258,420 6,696,588 10,479,732 14,634,924 19,513,260 46,530,900 116,026,404 176,524,764 267,050,676 389,762,124 567,548,916 910,732,812 1,407,496,500 3,387,309,516 5,467,787,504 — unresolved within range

Continued fraction of √n

√1,005,540 = [1002; (1, 3, 3, 1, 1, 1, 1, 2, 4, 1, 1, 2, 1, 1, 2, 1, 1, 7, 3, 1, 20, 7, 1, 1, …)]

Representations

In words
one million five thousand five hundred forty
Ordinal
1005540th
Binary
11110101011111100100
Octal
3653744
Hexadecimal
0xF57E4
Base64
D1fk
One's complement
4,293,961,755 (32-bit)
Scientific notation
1.00554 × 10⁶
As a duration
1,005,540 s = 11 days, 15 hours, 19 minutes
In other bases
ternary (3) 1220002100020
quaternary (4) 3311133210
quinary (5) 224134130
senary (6) 33315140
septenary (7) 11355414
nonary (9) 1802306
undecimal (11) 627528
duodecimal (12) 405ab0
tridecimal (13) 2928c3
tetradecimal (14) 1c2644
pentadecimal (15) 14ce10

As an angle

1,005,540° = 2,793 × 360° + 60°
60° ≈ 1.047 rad
Compass bearing: ENE (east-northeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 ·
Egyptian hieroglyphic
𓁨𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆
Chinese
一百萬五千五百四十
Chinese (financial)
壹佰萬伍仟伍佰肆拾
In other modern scripts
Eastern Arabic ١٠٠٥٥٤٠ Devanagari १००५५४० Bengali ১০০৫৫৪০ Tamil ௧௦௦௫௫௪௦ Thai ๑๐๐๕๕๔๐ Tibetan ༡༠༠༥༥༤༠ Khmer ១០០៥៥៤០ Lao ໑໐໐໕໕໔໐ Burmese ၁၀၀၅၅၄၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1005540, here are decompositions:

  • 13 + 1005527 = 1005540
  • 37 + 1005503 = 1005540
  • 47 + 1005493 = 1005540
  • 59 + 1005481 = 1005540
  • 73 + 1005467 = 1005540
  • 83 + 1005457 = 1005540
  • 101 + 1005439 = 1005540
  • 103 + 1005437 = 1005540

Showing the first eight; more decompositions exist.

Hex color
#0F57E4
RGB(15, 87, 228)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.87.228.

Address
0.15.87.228
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.87.228

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 1,005,540 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°.