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1,004,561

1,004,561 is a prime, 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.).

1,004,561 (one million four thousand five hundred sixty-one) is an odd 7-digit number. It is a prime number — divisible only by 1 and itself. Written other ways, in hexadecimal, 0xF5411.

Arithmetic Number Chen Prime Cube-Free Deficient Number Happy Number Odious Number Prime Pythagorean Prime Sexy Prime Squarefree

Interestingness

Properties

Parity
Odd
Digit count
7
Digit sum
17
Digit product
0
Digital root
8
Palindrome
No
Bit width
20 bits
Reversed
1,654,001
Square (n²)
1,009,142,802,721
Cube (n³)
1,013,745,503,044,210,481
Divisor count
2
σ(n) — sum of divisors
1,004,562
φ(n) — Euler's totient
1,004,560

Primality

1,004,561 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)
1 · 1004561
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 1,004,561)
1 × 1004561
First multiples
1,004,561 · 2,009,122 (double) · 3,013,683 · 4,018,244 · 5,022,805 · 6,027,366 · 7,031,927 · 8,036,488 · 9,041,049 · 10,045,610

Sums & aliquot sequence

As a sum of two squares: 400² + 919²
As consecutive integers: 502,280 + 502,281

Continued fraction of √n

√1,004,561 = [1002; (3, 1, 1, 2, 23, 1, 3, 4, 1, 3, 1, 11, 4, 1, 2, 1, 3, 8, 2, 17, 3, 1, 2, 1, …)]

Representations

In words
one million four thousand five hundred sixty-one
Ordinal
1004561st
Binary
11110101010000010001
Octal
3652021
Hexadecimal
0xF5411
Base64
D1QR
One's complement
4,293,962,734 (32-bit)
Scientific notation
1.004561 × 10⁶
As a duration
1,004,561 s = 11 days, 15 hours, 2 minutes, 41 seconds
In other bases
ternary (3) 1220000222222
quaternary (4) 3311100101
quinary (5) 224121221
senary (6) 33310425
septenary (7) 11352515
nonary (9) 1800888
undecimal (11) 626818
duodecimal (12) 405415
tridecimal (13) 29231c
tetradecimal (14) 1c2145
pentadecimal (15) 14c9ab

As an angle

1,004,561° = 2,790 × 360° + 161°
161° ≈ 2.81 rad
Compass bearing: SSE (south-southeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹 𒌋𒌋𒌋𒌋𒁹
Egyptian hieroglyphic
𓁨𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓏺
Chinese
一百萬四千五百六十一
Chinese (financial)
壹佰萬肆仟伍佰陸拾壹
In other modern scripts
Eastern Arabic ١٠٠٤٥٦١ Devanagari १००४५६१ Bengali ১০০৪৫৬১ Tamil ௧௦௦௪௫௬௧ Thai ๑๐๐๔๕๖๑ Tibetan ༡༠༠༤༥༦༡ Khmer ១០០៤៥៦១ Lao ໑໐໐໔໕໖໑ Burmese ၁၀၀၄၅၆၁

Also seen as

Prime neighborhood

Adjacent primes:

Pair status: sexy with 1004567.

Hex color
#0F5411
RGB(15, 84, 17)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.84.17.

Address
0.15.84.17
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.84.17

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 1,004,561 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

  • Prime numbers — The building blocks of arithmetic: what primes are, why they matter, and how we find them.
  • Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.