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1,000,021

1,000,021 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.).
Arithmetic Number Cube-Free Deficient Number Evil Number Gapful Number Semiprime Squarefree

Interestingness

Properties

Parity
Odd
Digit count
7
Digit sum
4
Digit product
0
Digital root
4
Palindrome
No
Bit width
20 bits
Reversed
1,200,001
Square (n²)
1,000,042,000,441
Cube (n³)
1,000,063,001,323,009,261
Divisor count
4
σ(n) — sum of divisors
1,090,944
φ(n) — Euler's totient
909,100
Sum of prime factors
90,922

Primality

Prime factorization: 11 × 90911

Nearest primes: 1,000,003 (−18) · 1,000,033 (+12)

Divisors & multiples

All divisors (4)
1 · 11 · 90911 · 1000021
Aliquot sum (sum of proper divisors): 90,923
Factor pairs (a × b = 1,000,021)
1 × 1000021
11 × 90911
First multiples
1,000,021 · 2,000,042 (double) · 3,000,063 · 4,000,084 · 5,000,105 · 6,000,126 · 7,000,147 · 8,000,168 · 9,000,189 · 10,000,210

Sums & aliquot sequence

As consecutive integers: 500,010 + 500,011 90,906 + 90,907 + … + 90,916 45,445 + 45,446 + … + 45,466
Aliquot sequence: 1,000,021 90,923 16,597 2,379 1,093 1 0 — terminates at zero

Continued fraction of √n

√1,000,021 = [1000; (95, 4, 5, 4, 2, 1, 9, 8, 1, 6, 2, 3, 2, 2, 16, 1, 2, 6, 7, 1, 1, 6, 1, 2, …)]

Representations

In words
one million twenty-one
Ordinal
1000021st
Binary
11110100001001010101
Octal
3641125
Hexadecimal
0xF4255
Base64
D0JV
One's complement
4,293,967,274 (32-bit)
Scientific notation
1.000021 × 10⁶
As a duration
1,000,021 s = 11 days, 13 hours, 47 minutes, 1 second
In other bases
ternary (3) 1212210202211
quaternary (4) 3310021111
quinary (5) 224000041
senary (6) 33233421
septenary (7) 11333341
nonary (9) 1783684
undecimal (11) 623370
duodecimal (12) 402871
tridecimal (13) 290239
tetradecimal (14) 1c0621
pentadecimal (15) 14b481

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹
Egyptian hieroglyphic
𓁨𓎆𓎆𓏺
Chinese
一百萬零二十一
Chinese (financial)
壹佰萬零貳拾壹
In other modern scripts
Eastern Arabic ١٠٠٠٠٢١ Devanagari १००००२१ Bengali ১০০০০২১ Tamil ௧௦௦௦௦௨௧ Thai ๑๐๐๐๐๒๑ Tibetan ༡༠༠༠༠༢༡ Khmer ១០០០០២១ Lao ໑໐໐໐໐໒໑ Burmese ၁၀၀၀၀၂၁

Also seen as

Hex color
#0F4255
RGB(15, 66, 85)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.66.85.

Address
0.15.66.85
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.66.85

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

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 1,000,021 and was likely granted around 1911.

Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.