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1,020,042

1,020,042 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.).

1,020,042 (one million twenty thousand forty-two) is an even 7-digit number. It is a composite number with 24 divisors, and factors as 2 × 3² × 61 × 929. Its proper divisors sum to 1,228,698, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF908A.

Abundant Number Cube-Free Harshad / Niven Odious Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
9
Digit product
0
Digital root
9
Palindrome
No
Bit width
20 bits
Reversed
2,400,201
Square (n²)
1,040,485,681,764
Cube (n³)
1,061,339,095,797,914,088
Divisor count
24
σ(n) — sum of divisors
2,248,740
φ(n) — Euler's totient
334,080
Sum of prime factors
998

Primality

Prime factorization: 2 × 3 2 × 61 × 929

Nearest primes: 1,020,037 (−5) · 1,020,043 (+1)

Divisors & multiples

All divisors (24)
1 · 2 · 3 · 6 · 9 · 18 · 61 · 122 · 183 · 366 · 549 · 929 · 1098 · 1858 · 2787 · 5574 · 8361 · 16722 · 56669 · 113338 · 170007 · 340014 · 510021 (half) · 1020042
Aliquot sum (sum of proper divisors): 1,228,698
Factor pairs (a × b = 1,020,042)
1 × 1020042
2 × 510021
3 × 340014
6 × 170007
9 × 113338
18 × 56669
61 × 16722
122 × 8361
183 × 5574
366 × 2787
549 × 1858
929 × 1098
First multiples
1,020,042 · 2,040,084 (double) · 3,060,126 · 4,080,168 · 5,100,210 · 6,120,252 · 7,140,294 · 8,160,336 · 9,180,378 · 10,200,420

Sums & aliquot sequence

As a sum of two squares: 591² + 819² = 699² + 729²
As consecutive integers: 340,013 + 340,014 + 340,015 255,009 + 255,010 + 255,011 + 255,012 113,334 + 113,335 + … + 113,342 84,998 + 84,999 + … + 85,009
Aliquot sequence: 1,020,042 1,228,698 1,433,520 3,847,392 7,714,368 14,871,312 27,454,972 20,719,364 15,539,530 15,848,150 14,913,274 7,726,406 3,863,206 2,274,794 1,317,046 663,458 375,070 — unresolved within range

Continued fraction of √n

√1,020,042 = [1009; (1, 33, 1, 4, 1, 3, 1, 1, 1, 1, 1, 1, 3, 1, 26, 1, 1, 18, 1, 1, 4, 1, 4, 1, …)]

Representations

In words
one million twenty thousand forty-two
Ordinal
1020042nd
Binary
11111001000010001010
Octal
3710212
Hexadecimal
0xF908A
Base64
D5CK
One's complement
4,293,947,253 (32-bit)
Scientific notation
1.020042 × 10⁶
As a duration
1,020,042 s = 11 days, 19 hours, 20 minutes, 42 seconds
In other bases
ternary (3) 1220211020100
quaternary (4) 3321002022
quinary (5) 230120132
senary (6) 33510230
septenary (7) 11445612
nonary (9) 1824210
undecimal (11) 637411
duodecimal (12) 412376
tridecimal (13) 29939a
tetradecimal (14) 1c7a42
pentadecimal (15) 15237c

As an angle

1,020,042° = 2,833 × 360° + 162°
162° ≈ 2.827 rad
Compass bearing: SSE (south-southeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋 𒌋𒌋𒌋𒌋𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓂍𓎆𓎆𓎆𓎆𓏺𓏺
Chinese
一百零二萬零四十二
Chinese (financial)
壹佰零貳萬零肆拾貳
In other modern scripts
Eastern Arabic ١٠٢٠٠٤٢ Devanagari १०२००४२ Bengali ১০২০০৪২ Tamil ௧௦௨௦௦௪௨ Thai ๑๐๒๐๐๔๒ Tibetan ༡༠༢༠༠༤༢ Khmer ១០២០០៤២ Lao ໑໐໒໐໐໔໒ Burmese ၁၀၂၀၀၄၂

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1020042, here are decompositions:

  • 5 + 1020037 = 1020042
  • 19 + 1020023 = 1020042
  • 29 + 1020013 = 1020042
  • 31 + 1020011 = 1020042
  • 41 + 1020001 = 1020042
  • 71 + 1019971 = 1020042
  • 139 + 1019903 = 1020042
  • 181 + 1019861 = 1020042

Showing the first eight; more decompositions exist.

Hex color
#0F908A
RGB(15, 144, 138)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.144.138.

Address
0.15.144.138
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.144.138

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

Possible date

Could be parsed as a date. Most likely interpretation: Thursday, January 2, 0042 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 0042-02-01 (DMMYYYY (Euro, single-digit day))
  • 0042-10-02 (MMDYYYY (US, single-digit day))
  • 0042-02-10 (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 1,020,042 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°.