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1,021,248

1,021,248 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.).

1,021,248 (one million twenty-one thousand two hundred forty-eight) is an even 7-digit number. It is a composite number with 70 divisors, and factors as 2⁶ × 3⁴ × 197. Its proper divisors sum to 2,021,418, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF9540.

Abundant Number Gapful Number Harshad / Niven Odious Number Practical Number Self Number Weird Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
18
Digit product
0
Digital root
9
Palindrome
No
Bit width
20 bits
Reversed
8,421,201
Square (n²)
1,042,947,477,504
Cube (n³)
1,065,108,025,506,004,992
Divisor count
70
σ(n) — sum of divisors
3,042,666
φ(n) — Euler's totient
338,688
Sum of prime factors
221

Primality

Prime factorization: 2 6 × 3 4 × 197

Nearest primes: 1,021,243 (−5) · 1,021,253 (+5)

Divisors & multiples

All divisors (70)
1 · 2 · 3 · 4 · 6 · 8 · 9 · 12 · 16 · 18 · 24 · 27 · 32 · 36 · 48 · 54 · 64 · 72 · 81 · 96 · 108 · 144 · 162 · 192 · 197 · 216 · 288 · 324 · 394 · 432 · 576 · 591 · 648 · 788 · 864 · 1182 · 1296 · 1576 · 1728 · 1773 · 2364 · 2592 · 3152 · 3546 · 4728 · 5184 · 5319 · 6304 · 7092 · 9456 · 10638 · 12608 · 14184 · 15957 · 18912 · 21276 · 28368 · 31914 · 37824 · 42552 · 56736 · 63828 · 85104 · 113472 · 127656 · 170208 · 255312 · 340416 · 510624 (half) · 1021248
Aliquot sum (sum of proper divisors): 2,021,418
Factor pairs (a × b = 1,021,248)
1 × 1021248
2 × 510624
3 × 340416
4 × 255312
6 × 170208
8 × 127656
9 × 113472
12 × 85104
16 × 63828
18 × 56736
24 × 42552
27 × 37824
32 × 31914
36 × 28368
48 × 21276
54 × 18912
64 × 15957
72 × 14184
81 × 12608
96 × 10638
108 × 9456
144 × 7092
162 × 6304
192 × 5319
197 × 5184
216 × 4728
288 × 3546
324 × 3152
394 × 2592
432 × 2364
576 × 1773
591 × 1728
648 × 1576
788 × 1296
864 × 1182
First multiples
1,021,248 · 2,042,496 (double) · 3,063,744 · 4,084,992 · 5,106,240 · 6,127,488 · 7,148,736 · 8,169,984 · 9,191,232 · 10,212,480

Sums & aliquot sequence

As a sum of two squares: 72² + 1,008²
As consecutive integers: 340,415 + 340,416 + 340,417 113,468 + 113,469 + … + 113,476 37,811 + 37,812 + … + 37,837 12,568 + 12,569 + … + 12,648
Aliquot sequence: 1,021,248 2,021,418 3,085,398 4,176,522 6,974,838 9,719,658 13,310,622 19,133,538 20,023,998 20,024,010 34,861,590 59,785,578 69,749,880 147,978,120 305,521,080 611,042,520 1,388,737,320 — unresolved within range

Continued fraction of √n

√1,021,248 = [1010; (1, 1, 3, 5, 1, 19, 1, 223, 1, 1, 1, 1, 1, 1, 1, 5, 1, 1, 1, 1, 1, 1, 1, 223, …)]

Period length 32 — the block in parentheses repeats forever.

Representations

In words
one million twenty-one thousand two hundred forty-eight
Ordinal
1021248th
Binary
11111001010101000000
Octal
3712500
Hexadecimal
0xF9540
Base64
D5VA
One's complement
4,293,946,047 (32-bit)
Scientific notation
1.021248 × 10⁶
As a duration
1,021,248 s = 11 days, 19 hours, 40 minutes, 48 seconds
In other bases
ternary (3) 1220212220000
quaternary (4) 3321111000
quinary (5) 230134443
senary (6) 33520000
septenary (7) 11452254
nonary (9) 1825800
undecimal (11) 638308
duodecimal (12) 413000
tridecimal (13) 299ab7
tetradecimal (14) 1c8264
pentadecimal (15) 1528d3

As an angle

1,021,248° = 2,836 × 360° + 288°
288° ≈ 5.027 rad
Compass bearing: WNW (west-northwest)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓂍𓆼𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Chinese
一百零二萬一千二百四十八
Chinese (financial)
壹佰零貳萬壹仟貳佰肆拾捌
In other modern scripts
Eastern Arabic ١٠٢١٢٤٨ Devanagari १०२१२४८ Bengali ১০২১২৪৮ Tamil ௧௦௨௧௨௪௮ Thai ๑๐๒๑๒๔๘ Tibetan ༡༠༢༡༢༤༨ Khmer ១០២១២៤៨ Lao ໑໐໒໑໒໔໘ Burmese ၁၀၂၁၂၄၈

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1021248, here are decompositions:

  • 5 + 1021243 = 1021248
  • 31 + 1021217 = 1021248
  • 89 + 1021159 = 1021248
  • 157 + 1021091 = 1021248
  • 167 + 1021081 = 1021248
  • 181 + 1021067 = 1021248
  • 229 + 1021019 = 1021248
  • 251 + 1020997 = 1021248

Showing the first eight; more decompositions exist.

Hex color
#0F9540
RGB(15, 149, 64)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.149.64.

Address
0.15.149.64
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.149.64

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

Possible date

Could be parsed as a date. Most likely interpretation: Thursday, January 2, 1248 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 1248-02-01 (DMMYYYY (Euro, single-digit day))
  • 1248-10-02 (MMDYYYY (US, single-digit day))
  • 1248-02-10 (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 1,021,248 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°.