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1,020,144

1,020,144 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.).

1,020,144 (one million twenty thousand one hundred forty-four) is an even 7-digit number. It is a composite number with 40 divisors, and factors as 2⁴ × 3 × 53 × 401. Its proper divisors sum to 1,671,648, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF90F0.

Abundant Number Evil Number Harshad / Niven Practical Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
12
Digit product
0
Digital root
3
Palindrome
No
Bit width
20 bits
Reversed
4,410,201
Square (n²)
1,040,693,780,736
Cube (n³)
1,061,657,516,255,145,984
Divisor count
40
σ(n) — sum of divisors
2,691,792
φ(n) — Euler's totient
332,800
Sum of prime factors
465

Primality

Prime factorization: 2 4 × 3 × 53 × 401

Nearest primes: 1,020,143 (−1) · 1,020,157 (+13)

Divisors & multiples

All divisors (40)
1 · 2 · 3 · 4 · 6 · 8 · 12 · 16 · 24 · 48 · 53 · 106 · 159 · 212 · 318 · 401 · 424 · 636 · 802 · 848 · 1203 · 1272 · 1604 · 2406 · 2544 · 3208 · 4812 · 6416 · 9624 · 19248 · 21253 · 42506 · 63759 · 85012 · 127518 · 170024 · 255036 · 340048 · 510072 (half) · 1020144
Aliquot sum (sum of proper divisors): 1,671,648
Factor pairs (a × b = 1,020,144)
1 × 1020144
2 × 510072
3 × 340048
4 × 255036
6 × 170024
8 × 127518
12 × 85012
16 × 63759
24 × 42506
48 × 21253
53 × 19248
106 × 9624
159 × 6416
212 × 4812
318 × 3208
401 × 2544
424 × 2406
636 × 1604
802 × 1272
848 × 1203
First multiples
1,020,144 · 2,040,288 (double) · 3,060,432 · 4,080,576 · 5,100,720 · 6,120,864 · 7,141,008 · 8,161,152 · 9,181,296 · 10,201,440

Sums & aliquot sequence

As consecutive integers: 340,047 + 340,048 + 340,049 31,864 + 31,865 + … + 31,895 19,222 + 19,223 + … + 19,274 10,579 + 10,580 + … + 10,674
Aliquot sequence: 1,020,144 1,671,648 3,118,368 5,814,528 10,030,560 21,567,216 39,214,608 62,089,920 151,483,440 318,115,968 576,603,552 1,261,565,088 2,816,625,504 6,401,445,792 12,802,893,600 — keeps growing

Continued fraction of √n

√1,020,144 = [1010; (45, 1, 10, 16, 1, 1, 1, 1, 10, 1, 7, 126, 7, 1, 10, 1, 1, 1, 1, 16, 10, 1, 45, 2020)]

Period length 24 — the block in parentheses repeats forever.

Representations

In words
one million twenty thousand one hundred forty-four
Ordinal
1020144th
Binary
11111001000011110000
Octal
3710360
Hexadecimal
0xF90F0
Base64
D5Dw
One's complement
4,293,947,151 (32-bit)
Scientific notation
1.020144 × 10⁶
As a duration
1,020,144 s = 11 days, 19 hours, 22 minutes, 24 seconds
In other bases
ternary (3) 1220211101010
quaternary (4) 3321003300
quinary (5) 230121034
senary (6) 33510520
septenary (7) 11446116
nonary (9) 1824333
undecimal (11) 6374a4
duodecimal (12) 412440
tridecimal (13) 299448
tetradecimal (14) 1c7ab6
pentadecimal (15) 1523e9

As an angle

1,020,144° = 2,833 × 360° + 264°
264° ≈ 4.608 rad
Compass bearing: W (west)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓂍𓍢𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺
Chinese
一百零二萬零一百四十四
Chinese (financial)
壹佰零貳萬零壹佰肆拾肆
In other modern scripts
Eastern Arabic ١٠٢٠١٤٤ Devanagari १०२०१४४ Bengali ১০২০১৪৪ Tamil ௧௦௨௦௧௪௪ Thai ๑๐๒๐๑๔๔ Tibetan ༡༠༢༠༡༤༤ Khmer ១០២០១៤៤ Lao ໑໐໒໐໑໔໔ Burmese ၁၀၂၀၁၄၄

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1020144, here are decompositions:

  • 7 + 1020137 = 1020144
  • 31 + 1020113 = 1020144
  • 43 + 1020101 = 1020144
  • 67 + 1020077 = 1020144
  • 101 + 1020043 = 1020144
  • 107 + 1020037 = 1020144
  • 131 + 1020013 = 1020144
  • 137 + 1020007 = 1020144

Showing the first eight; more decompositions exist.

Hex color
#0F90F0
RGB(15, 144, 240)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.144.240.

Address
0.15.144.240
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.144.240

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

Possible date

Could be parsed as a date. Most likely interpretation: Thursday, January 2, 0144 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 0144-02-01 (DMMYYYY (Euro, single-digit day))
  • 0144-10-02 (MMDYYYY (US, single-digit day))
  • 0144-02-10 (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 1,020,144 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°.