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1,042,020

1,042,020 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.).

1,042,020 (one million forty-two thousand twenty) is an even 7-digit number. It is a composite number with 72 divisors, and factors as 2² × 3² × 5 × 7 × 827. Its proper divisors sum to 2,574,684, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xFE664.

Abundant Number Arithmetic Number Cube-Free Evil Number Gapful Number Harshad / Niven Practical Number Weird Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
9
Digit product
0
Digital root
9
Palindrome
No
Bit width
20 bits
Reversed
202,401
Square (n²)
1,085,805,680,400
Cube (n³)
1,131,431,235,090,408,000
Divisor count
72
σ(n) — sum of divisors
3,616,704
φ(n) — Euler's totient
237,888
Sum of prime factors
849

Primality

Prime factorization: 2 2 × 3 2 × 5 × 7 × 827

Nearest primes: 1,042,001 (−19) · 1,042,021 (+1)

Divisors & multiples

All divisors (72)
1 · 2 · 3 · 4 · 5 · 6 · 7 · 9 · 10 · 12 · 14 · 15 · 18 · 20 · 21 · 28 · 30 · 35 · 36 · 42 · 45 · 60 · 63 · 70 · 84 · 90 · 105 · 126 · 140 · 180 · 210 · 252 · 315 · 420 · 630 · 827 · 1260 · 1654 · 2481 · 3308 · 4135 · 4962 · 5789 · 7443 · 8270 · 9924 · 11578 · 12405 · 14886 · 16540 · 17367 · 23156 · 24810 · 28945 · 29772 · 34734 · 37215 · 49620 · 52101 · 57890 · 69468 · 74430 · 86835 · 104202 · 115780 · 148860 · 173670 · 208404 · 260505 · 347340 · 521010 (half) · 1042020
Aliquot sum (sum of proper divisors): 2,574,684
Factor pairs (a × b = 1,042,020)
1 × 1042020
2 × 521010
3 × 347340
4 × 260505
5 × 208404
6 × 173670
7 × 148860
9 × 115780
10 × 104202
12 × 86835
14 × 74430
15 × 69468
18 × 57890
20 × 52101
21 × 49620
28 × 37215
30 × 34734
35 × 29772
36 × 28945
42 × 24810
45 × 23156
60 × 17367
63 × 16540
70 × 14886
84 × 12405
90 × 11578
105 × 9924
126 × 8270
140 × 7443
180 × 5789
210 × 4962
252 × 4135
315 × 3308
420 × 2481
630 × 1654
827 × 1260
First multiples
1,042,020 · 2,084,040 (double) · 3,126,060 · 4,168,080 · 5,210,100 · 6,252,120 · 7,294,140 · 8,336,160 · 9,378,180 · 10,420,200

Sums & aliquot sequence

As consecutive integers: 347,339 + 347,340 + 347,341 208,402 + 208,403 + 208,404 + 208,405 + 208,406 148,857 + 148,858 + … + 148,863 130,249 + 130,250 + … + 130,256
Aliquot sequence: 1,042,020 2,574,684 5,313,924 12,297,852 24,142,468 24,142,524 40,923,204 68,803,644 132,337,044 290,539,116 574,620,564 957,701,164 962,776,276 1,140,314,924 1,140,314,980 1,605,880,220 2,381,142,820 — unresolved within range

Continued fraction of √n

√1,042,020 = [1020; (1, 3, 1, 5, 1, 1, 1, 18, 12, 2, 1, 1, 7, 1, 1, 6, 3, 1, 33, 1, 5, 2, 2, 4, …)]

Representations

In words
one million forty-two thousand twenty
Ordinal
1042020th
Binary
11111110011001100100
Octal
3763144
Hexadecimal
0xFE664
Base64
D+Zk
One's complement
4,293,925,275 (32-bit)
Scientific notation
1.04202 × 10⁶
As a duration
1,042,020 s = 12 days, 1 hour, 27 minutes
In other bases
ternary (3) 1221221101100
quaternary (4) 3332121210
quinary (5) 231321040
senary (6) 34200100
septenary (7) 11566650
nonary (9) 1857340
undecimal (11) 651981
duodecimal (12) 423030
tridecimal (13) 2a63a5
tetradecimal (14) 1d1a60
pentadecimal (15) 158b30

As an angle

1,042,020° = 2,894 × 360° + 180°
180° ≈ 3.142 rad
Compass bearing: S (south)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 ·
Egyptian hieroglyphic
𓁨𓂍𓂍𓂍𓂍𓆼𓆼𓎆𓎆
Chinese
一百零四萬二千零二十
Chinese (financial)
壹佰零肆萬貳仟零貳拾
In other modern scripts
Eastern Arabic ١٠٤٢٠٢٠ Devanagari १०४२०२० Bengali ১০৪২০২০ Tamil ௧௦௪௨௦௨௦ Thai ๑๐๔๒๐๒๐ Tibetan ༡༠༤༢༠༢༠ Khmer ១០៤២០២០ Lao ໑໐໔໒໐໒໐ Burmese ၁၀၄၂၀၂၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1042020, here are decompositions:

  • 19 + 1042001 = 1042020
  • 29 + 1041991 = 1042020
  • 37 + 1041983 = 1042020
  • 59 + 1041961 = 1042020
  • 71 + 1041949 = 1042020
  • 101 + 1041919 = 1042020
  • 113 + 1041907 = 1042020
  • 127 + 1041893 = 1042020

Showing the first eight; more decompositions exist.

Hex color
#0FE664
RGB(15, 230, 100)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.230.100.

Address
0.15.230.100
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.230.100

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

Possible date

Could be parsed as a date. Most likely interpretation: Saturday, January 4, 2020 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 2020-04-01 (DMMYYYY (Euro, single-digit day))
  • 2020-10-04 (MMDYYYY (US, single-digit day))
  • 2020-04-10 (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 1,042,020 and was likely granted around 1912.

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°.