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1,028,621

1,028,621 is a composite number, odd.

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.).

1,028,621 (one million twenty-eight thousand six hundred twenty-one) is an odd 7-digit number. It is a composite number with 6 divisors, and factors as 11² × 8,501. Written other ways, in hexadecimal, 0xFB20D.

Arithmetic Number Cube-Free Deficient Number Gapful Number Odious Number Pernicious Number

Interestingness

Properties

Parity
Odd
Digit count
7
Digit sum
20
Digit product
0
Digital root
2
Palindrome
No
Bit width
20 bits
Reversed
1,268,201
Square (n²)
1,058,061,161,641
Cube (n³)
1,088,343,930,148,327,061
Divisor count
6
σ(n) — sum of divisors
1,130,766
φ(n) — Euler's totient
935,000
Sum of prime factors
8,523

Primality

Prime factorization: 11 2 × 8501

Nearest primes: 1,028,617 (−4) · 1,028,647 (+26)

Divisors & multiples

All divisors (6)
1 · 11 · 121 · 8501 · 93511 · 1028621
Aliquot sum (sum of proper divisors): 102,145
Factor pairs (a × b = 1,028,621)
1 × 1028621
11 × 93511
121 × 8501
First multiples
1,028,621 · 2,057,242 (double) · 3,085,863 · 4,114,484 · 5,143,105 · 6,171,726 · 7,200,347 · 8,228,968 · 9,257,589 · 10,286,210

Sums & aliquot sequence

As a sum of two squares: 605² + 814²
As consecutive integers: 514,310 + 514,311 93,506 + 93,507 + … + 93,516 46,745 + 46,746 + … + 46,766 8,441 + 8,442 + … + 8,561
Aliquot sequence: 1,028,621 102,145 24,575 5,929 1,652 1,708 1,764 3,423 1,825 469 75 49 8 7 1 0 — terminates at zero

Continued fraction of √n

√1,028,621 = [1014; (4, 1, 3, 2, 1, 1, 3, 1, 4, 3, 1, 54, 16, 1, 2, 1, 13, 4, 8, 2, 5, 1, 3, 2, …)]

Representations

In words
one million twenty-eight thousand six hundred twenty-one
Ordinal
1028621st
Binary
11111011001000001101
Octal
3731015
Hexadecimal
0xFB20D
Base64
D7IN
One's complement
4,293,938,674 (32-bit)
Scientific notation
1.028621 × 10⁶
As a duration
1,028,621 s = 11 days, 21 hours, 43 minutes, 41 seconds
In other bases
ternary (3) 1221021000002
quaternary (4) 3323020031
quinary (5) 230403441
senary (6) 34014045
septenary (7) 11512616
nonary (9) 1837002
undecimal (11) 642900
duodecimal (12) 417325
tridecimal (13) 2a0269
tetradecimal (14) 1cac0d
pentadecimal (15) 154b9b

As an angle

1,028,621° = 2,857 × 360° + 101°
101° ≈ 1.763 rad
Compass bearing: E (east)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹
Egyptian hieroglyphic
𓁨𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓏺
Chinese
一百零二萬八千六百二十一
Chinese (financial)
壹佰零貳萬捌仟陸佰貳拾壹
In other modern scripts
Eastern Arabic ١٠٢٨٦٢١ Devanagari १०२८६२१ Bengali ১০২৮৬২১ Tamil ௧௦௨௮௬௨௧ Thai ๑๐๒๘๖๒๑ Tibetan ༡༠༢༨༦༢༡ Khmer ១០២៨៦២១ Lao ໑໐໒໘໖໒໑ Burmese ၁၀၂၈၆၂၁

Also seen as

Hex color
#0FB20D
RGB(15, 178, 13)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.178.13.

Address
0.15.178.13
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.178.13

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

Possible date

Could be parsed as a date. Most likely interpretation: Tuesday, January 2, 8621 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 8621-02-01 (DMMYYYY (Euro, single-digit day))
  • 8621-10-02 (MMDYYYY (US, single-digit day))
  • 8621-02-10 (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 1,028,621 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