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1,020,142

1,020,142 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.).

1,020,142 (one million twenty thousand one hundred forty-two) is an even 7-digit number. It is a composite number with 16 divisors, and factors as 2 × 23 × 67 × 331. Written other ways, in hexadecimal, 0xF90EE.

Arithmetic Number Cube-Free Deficient Number Evil Number Squarefree

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
10
Digit product
0
Digital root
1
Palindrome
No
Bit width
20 bits
Reversed
2,410,201
Square (n²)
1,040,689,700,164
Cube (n³)
1,061,651,272,104,703,288
Divisor count
16
σ(n) — sum of divisors
1,625,472
φ(n) — Euler's totient
479,160
Sum of prime factors
423

Primality

Prime factorization: 2 × 23 × 67 × 331

Nearest primes: 1,020,137 (−5) · 1,020,143 (+1)

Divisors & multiples

All divisors (16)
1 · 2 · 23 · 46 · 67 · 134 · 331 · 662 · 1541 · 3082 · 7613 · 15226 · 22177 · 44354 · 510071 (half) · 1020142
Aliquot sum (sum of proper divisors): 605,330
Factor pairs (a × b = 1,020,142)
1 × 1020142
2 × 510071
23 × 44354
46 × 22177
67 × 15226
134 × 7613
331 × 3082
662 × 1541
First multiples
1,020,142 · 2,040,284 (double) · 3,060,426 · 4,080,568 · 5,100,710 · 6,120,852 · 7,140,994 · 8,161,136 · 9,181,278 · 10,201,420

Sums & aliquot sequence

As consecutive integers: 255,034 + 255,035 + 255,036 + 255,037 44,343 + 44,344 + … + 44,365 15,193 + 15,194 + … + 15,259 11,043 + 11,044 + … + 11,134
Aliquot sequence: 1,020,142 605,330 583,534 416,834 265,294 132,650 150,070 127,130 101,722 52,250 60,070 48,074 31,432 27,518 13,762 9,854 6,106 — unresolved within range

Continued fraction of √n

√1,020,142 = [1010; (48, 10, 2, 4, 9, 1, 1, 2, 1, 1, 9, 4, 2, 10, 48, 2020)]

Period length 16 — the block in parentheses repeats forever.

Representations

In words
one million twenty thousand one hundred forty-two
Ordinal
1020142nd
Binary
11111001000011101110
Octal
3710356
Hexadecimal
0xF90EE
Base64
D5Du
One's complement
4,293,947,153 (32-bit)
Scientific notation
1.020142 × 10⁶
As a duration
1,020,142 s = 11 days, 19 hours, 22 minutes, 22 seconds
In other bases
ternary (3) 1220211101001
quaternary (4) 3321003232
quinary (5) 230121032
senary (6) 33510514
septenary (7) 11446114
nonary (9) 1824331
undecimal (11) 6374a2
duodecimal (12) 41243a
tridecimal (13) 299446
tetradecimal (14) 1c7ab4
pentadecimal (15) 1523e7
Palindromic in base 5

As an angle

1,020,142° = 2,833 × 360° + 262°
262° ≈ 4.573 rad
Compass bearing: W (west)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒁹𒁹 𒌋𒌋𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓂍𓍢𓎆𓎆𓎆𓎆𓏺𓏺
Chinese
一百零二萬零一百四十二
Chinese (financial)
壹佰零貳萬零壹佰肆拾貳
In other modern scripts
Eastern Arabic ١٠٢٠١٤٢ Devanagari १०२०१४२ Bengali ১০২০১৪২ Tamil ௧௦௨௦௧௪௨ Thai ๑๐๒๐๑๔๒ Tibetan ༡༠༢༠༡༤༢ Khmer ១០២០១៤២ Lao ໑໐໒໐໑໔໒ Burmese ၁၀၂၀၁၄၂

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1020142, here are decompositions:

  • 5 + 1020137 = 1020142
  • 29 + 1020113 = 1020142
  • 41 + 1020101 = 1020142
  • 83 + 1020059 = 1020142
  • 131 + 1020011 = 1020142
  • 239 + 1019903 = 1020142
  • 269 + 1019873 = 1020142
  • 281 + 1019861 = 1020142

Showing the first eight; more decompositions exist.

Hex color
#0F90EE
RGB(15, 144, 238)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.144.238.

Address
0.15.144.238
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.144.238

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

Possible date

Could be parsed as a date. Most likely interpretation: Tuesday, January 2, 0142 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 0142-02-01 (DMMYYYY (Euro, single-digit day))
  • 0142-10-02 (MMDYYYY (US, single-digit day))
  • 0142-02-10 (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 1,020,142 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°.