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1,005,642

1,005,642 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.).

1,005,642 (one million five thousand six hundred forty-two) is an even 7-digit number. It is a composite number with 32 divisors, and factors as 2 × 3³ × 11 × 1,693. Its proper divisors sum to 1,433,718, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF584A.

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

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
18
Digit product
0
Digital root
9
Palindrome
No
Bit width
20 bits
Reversed
2,465,001
Square (n²)
1,011,315,832,164
Cube (n³)
1,017,021,676,089,069,288
Divisor count
32
σ(n) — sum of divisors
2,439,360
φ(n) — Euler's totient
304,560
Sum of prime factors
1,715

Primality

Prime factorization: 2 × 3 3 × 11 × 1693

Nearest primes: 1,005,637 (−5) · 1,005,643 (+1)

Divisors & multiples

All divisors (32)
1 · 2 · 3 · 6 · 9 · 11 · 18 · 22 · 27 · 33 · 54 · 66 · 99 · 198 · 297 · 594 · 1693 · 3386 · 5079 · 10158 · 15237 · 18623 · 30474 · 37246 · 45711 · 55869 · 91422 · 111738 · 167607 · 335214 · 502821 (half) · 1005642
Aliquot sum (sum of proper divisors): 1,433,718
Factor pairs (a × b = 1,005,642)
1 × 1005642
2 × 502821
3 × 335214
6 × 167607
9 × 111738
11 × 91422
18 × 55869
22 × 45711
27 × 37246
33 × 30474
54 × 18623
66 × 15237
99 × 10158
198 × 5079
297 × 3386
594 × 1693
First multiples
1,005,642 · 2,011,284 (double) · 3,016,926 · 4,022,568 · 5,028,210 · 6,033,852 · 7,039,494 · 8,045,136 · 9,050,778 · 10,056,420

Sums & aliquot sequence

As consecutive integers: 335,213 + 335,214 + 335,215 251,409 + 251,410 + 251,411 + 251,412 111,734 + 111,735 + … + 111,742 91,417 + 91,418 + … + 91,427
Aliquot sequence: 1,005,642 1,433,718 2,222,298 2,963,610 5,881,590 12,123,306 16,495,830 31,779,306 43,516,278 61,498,170 106,342,470 201,626,730 329,801,310 529,237,026 618,820,794 725,316,858 1,128,652,038 — unresolved within range

Continued fraction of √n

√1,005,642 = [1002; (1, 4, 2, 6, 1, 2, 1, 3, 5, 2, 4, 5, 12, 3, 1, 3, 5, 1, 7, 1, 3, 3, 3, 40, …)]

Representations

In words
one million five thousand six hundred forty-two
Ordinal
1005642nd
Binary
11110101100001001010
Octal
3654112
Hexadecimal
0xF584A
Base64
D1hK
One's complement
4,293,961,653 (32-bit)
Scientific notation
1.005642 × 10⁶
As a duration
1,005,642 s = 11 days, 15 hours, 20 minutes, 42 seconds
In other bases
ternary (3) 1220002111000
quaternary (4) 3311201022
quinary (5) 224140032
senary (6) 33315430
septenary (7) 11355621
nonary (9) 1802430
undecimal (11) 627610
duodecimal (12) 405b76
tridecimal (13) 292971
tetradecimal (14) 1c26b8
pentadecimal (15) 14ce7c

As an angle

1,005,642° = 2,793 × 360° + 162°
162° ≈ 2.827 rad
Compass bearing: SSE (south-southeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋 𒌋𒌋𒌋𒌋𒁹𒁹
Egyptian hieroglyphic
𓁨𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
Chinese
一百萬五千六百四十二
Chinese (financial)
壹佰萬伍仟陸佰肆拾貳
In other modern scripts
Eastern Arabic ١٠٠٥٦٤٢ Devanagari १००५६४२ Bengali ১০০৫৬৪২ Tamil ௧௦௦௫௬௪௨ Thai ๑๐๐๕๖๔๒ Tibetan ༡༠༠༥༦༤༢ Khmer ១០០៥៦៤២ Lao ໑໐໐໕໖໔໒ Burmese ၁၀၀၅၆၄၂

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1005642, here are decompositions:

  • 5 + 1005637 = 1005642
  • 23 + 1005619 = 1005642
  • 61 + 1005581 = 1005642
  • 89 + 1005553 = 1005642
  • 101 + 1005541 = 1005642
  • 139 + 1005503 = 1005642
  • 149 + 1005493 = 1005642
  • 229 + 1005413 = 1005642

Showing the first eight; more decompositions exist.

Hex color
#0F584A
RGB(15, 88, 74)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.88.74.

Address
0.15.88.74
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.88.74

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 1,005,642 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°.