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1,001,561

1,001,561 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.).

1,001,561 (one million one thousand five hundred sixty-one) is an odd 7-digit number. It is a composite number with 8 divisors, and factors as 11 × 83 × 1,097. Written other ways, in hexadecimal, 0xF4859.

Arithmetic Number Cube-Free Deficient Number Evil Number Gapful Number Sphenic Number Squarefree

Interestingness

Properties

Parity
Odd
Digit count
7
Digit sum
14
Digit product
0
Digital root
5
Palindrome
No
Bit width
20 bits
Reversed
1,651,001
Square (n²)
1,003,124,436,721
Cube (n³)
1,004,690,313,966,721,481
Divisor count
8
σ(n) — sum of divisors
1,106,784
φ(n) — Euler's totient
898,720
Sum of prime factors
1,191

Primality

Prime factorization: 11 × 83 × 1097

Nearest primes: 1,001,551 (−10) · 1,001,563 (+2)

Divisors & multiples

All divisors (8)
1 · 11 · 83 · 913 · 1097 · 12067 · 91051 · 1001561
Aliquot sum (sum of proper divisors): 105,223
Factor pairs (a × b = 1,001,561)
1 × 1001561
11 × 91051
83 × 12067
913 × 1097
First multiples
1,001,561 · 2,003,122 (double) · 3,004,683 · 4,006,244 · 5,007,805 · 6,009,366 · 7,010,927 · 8,012,488 · 9,014,049 · 10,015,610

Sums & aliquot sequence

As consecutive integers: 500,780 + 500,781 91,046 + 91,047 + … + 91,056 45,515 + 45,516 + … + 45,536 12,026 + 12,027 + … + 12,108
Aliquot sequence: 1,001,561 105,223 897 447 153 81 40 50 43 1 0 — terminates at zero

Continued fraction of √n

√1,001,561 = [1000; (1, 3, 1, 1, 4, 1, 1, 4, 2, 4, 1, 86, 4, 1, 4, 3, 3, 1, 2, 124, 1, 2, 1, 3, …)]

Representations

In words
one million one thousand five hundred sixty-one
Ordinal
1001561st
Binary
11110100100001011001
Octal
3644131
Hexadecimal
0xF4859
Base64
D0hZ
One's complement
4,293,965,734 (32-bit)
Scientific notation
1.001561 × 10⁶
As a duration
1,001,561 s = 11 days, 14 hours, 12 minutes, 41 seconds
In other bases
ternary (3) 1212212212212
quaternary (4) 3310201121
quinary (5) 224022221
senary (6) 33244505
septenary (7) 11341001
nonary (9) 1785785
undecimal (11) 624540
duodecimal (12) 403735
tridecimal (13) 290b52
tetradecimal (14) 1c1001
pentadecimal (15) 14bb5b

As an angle

1,001,561° = 2,782 × 360° + 41°
41° ≈ 0.716 rad
Compass bearing: NE (northeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹 𒌋𒌋𒌋𒌋𒁹
Egyptian hieroglyphic
𓁨𓆼𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓏺
Chinese
一百萬一千五百六十一
Chinese (financial)
壹佰萬壹仟伍佰陸拾壹
In other modern scripts
Eastern Arabic ١٠٠١٥٦١ Devanagari १००१५६१ Bengali ১০০১৫৬১ Tamil ௧௦௦௧௫௬௧ Thai ๑๐๐๑๕๖๑ Tibetan ༡༠༠༡༥༦༡ Khmer ១០០១៥៦១ Lao ໑໐໐໑໕໖໑ Burmese ၁၀၀၁၅၆၁

Also seen as

Hex color
#0F4859
RGB(15, 72, 89)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.72.89.

Address
0.15.72.89
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.72.89

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 1,001,561 and was likely granted around 1911.

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

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