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1,018,042

1,018,042 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.).

1,018,042 (one million eighteen thousand forty-two) is an even 7-digit number. It is a composite number with 8 divisors, and factors as 2 × 151 × 3,371. Written other ways, in hexadecimal, 0xF88BA.

Arithmetic Number Cube-Free Deficient Number Happy Number Odious Number Pernicious Number Sphenic Number Squarefree

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
16
Digit product
0
Digital root
7
Palindrome
No
Bit width
20 bits
Reversed
2,408,101
Square (n²)
1,036,409,513,764
Cube (n³)
1,055,108,414,211,330,088
Divisor count
8
σ(n) — sum of divisors
1,537,632
φ(n) — Euler's totient
505,500
Sum of prime factors
3,524

Primality

Prime factorization: 2 × 151 × 3371

Nearest primes: 1,018,021 (−21) · 1,018,057 (+15)

Divisors & multiples

All divisors (8)
1 · 2 · 151 · 302 · 3371 · 6742 · 509021 (half) · 1018042
Aliquot sum (sum of proper divisors): 519,590
Factor pairs (a × b = 1,018,042)
1 × 1018042
2 × 509021
151 × 6742
302 × 3371
First multiples
1,018,042 · 2,036,084 (double) · 3,054,126 · 4,072,168 · 5,090,210 · 6,108,252 · 7,126,294 · 8,144,336 · 9,162,378 · 10,180,420

Sums & aliquot sequence

As consecutive integers: 254,509 + 254,510 + 254,511 + 254,512 6,667 + 6,668 + … + 6,817 1,384 + 1,385 + … + 1,987
Aliquot sequence: 1,018,042 519,590 423,898 211,952 230,728 207,032 236,728 212,552 188,443 1 0 — terminates at zero

Continued fraction of √n

√1,018,042 = [1008; (1, 50, 1, 2, 1, 8, 3, 3, 27, 2, 1, 11, 1, 6, 3, 4, 1, 4, 2, 5, 3, 2, 1, 1, …)]

Representations

In words
one million eighteen thousand forty-two
Ordinal
1018042nd
Binary
11111000100010111010
Octal
3704272
Hexadecimal
0xF88BA
Base64
D4i6
One's complement
4,293,949,253 (32-bit)
Scientific notation
1.018042 × 10⁶
As a duration
1,018,042 s = 11 days, 18 hours, 47 minutes, 22 seconds
In other bases
ternary (3) 1220201111021
quaternary (4) 3320202322
quinary (5) 230034132
senary (6) 33453054
septenary (7) 11440024
nonary (9) 1821437
undecimal (11) 635963
duodecimal (12) 41118a
tridecimal (13) 2984bc
tetradecimal (14) 1c7014
pentadecimal (15) 151997

As an angle

1,018,042° = 2,827 × 360° + 322°
322° ≈ 5.62 rad
Compass bearing: NW (northwest)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓎆𓎆𓎆𓎆𓏺𓏺
Chinese
一百零一萬八千零四十二
Chinese (financial)
壹佰零壹萬捌仟零肆拾貳
In other modern scripts
Eastern Arabic ١٠١٨٠٤٢ Devanagari १०१८०४२ Bengali ১০১৮০৪২ Tamil ௧௦௧௮௦௪௨ Thai ๑๐๑๘๐๔๒ Tibetan ༡༠༡༨༠༤༢ Khmer ១០១៨០៤២ Lao ໑໐໑໘໐໔໒ Burmese ၁၀၁၈၀၄၂

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1018042, here are decompositions:

  • 23 + 1018019 = 1018042
  • 83 + 1017959 = 1018042
  • 89 + 1017953 = 1018042
  • 191 + 1017851 = 1018042
  • 293 + 1017749 = 1018042
  • 359 + 1017683 = 1018042
  • 419 + 1017623 = 1018042
  • 491 + 1017551 = 1018042

Showing the first eight; more decompositions exist.

Hex color
#0F88BA
RGB(15, 136, 186)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.136.186.

Address
0.15.136.186
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.136.186

Unspecified address (0.0.0.0/8) — "this network" placeholder.

Possible date

Could be parsed as a date. Most likely interpretation: Wednesday, January 1, 8042 (MDDYYYY (US, single-digit month)).

Other possible interpretations (2)
  • 8042-10-01 (MMDYYYY (US, single-digit day))
  • 8042-01-10 (DDMYYYY (Euro, single-digit month))
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 1,018,042 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°.