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1,001,221

1,001,221 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.).

1,001,221 (one million one thousand two hundred twenty-one) is an odd 7-digit number. It is a composite number with 4 divisors, and factors as 13 × 77,017. Written other ways, in hexadecimal, 0xF4705.

Arithmetic Number Cube-Free Deficient Number Evil Number Semiprime Squarefree

Interestingness

Properties

Parity
Odd
Digit count
7
Digit sum
7
Digit product
0
Digital root
7
Palindrome
No
Bit width
20 bits
Reversed
1,221,001
Square (n²)
1,002,443,490,841
Cube (n³)
1,003,667,474,343,316,861
Divisor count
4
σ(n) — sum of divisors
1,078,252
φ(n) — Euler's totient
924,192
Sum of prime factors
77,030

Primality

Prime factorization: 13 × 77017

Nearest primes: 1,001,219 (−2) · 1,001,237 (+16)

Divisors & multiples

All divisors (4)
1 · 13 · 77017 · 1001221
Aliquot sum (sum of proper divisors): 77,031
Factor pairs (a × b = 1,001,221)
1 × 1001221
13 × 77017
First multiples
1,001,221 · 2,002,442 (double) · 3,003,663 · 4,004,884 · 5,006,105 · 6,007,326 · 7,008,547 · 8,009,768 · 9,010,989 · 10,012,210

Sums & aliquot sequence

As a sum of two squares: 465² + 886² = 639² + 770²
As consecutive integers: 500,610 + 500,611 77,011 + 77,012 + … + 77,023 38,496 + 38,497 + … + 38,521
Aliquot sequence: 1,001,221 77,031 38,721 12,911 1 0 — terminates at zero

Continued fraction of √n

√1,001,221 = [1000; (1, 1, 1, 1, 3, 3, 1, 1, 2, 5, 2, 1, 3, 2, 1, 4, 14, 5, 2, 2, 1, 18, 2, 1, …)]

Representations

In words
one million one thousand two hundred twenty-one
Ordinal
1001221st
Binary
11110100011100000101
Octal
3643405
Hexadecimal
0xF4705
Base64
D0cF
One's complement
4,293,966,074 (32-bit)
Scientific notation
1.001221 × 10⁶
As a duration
1,001,221 s = 11 days, 14 hours, 7 minutes, 1 second
In other bases
ternary (3) 1212212102021
quaternary (4) 3310130011
quinary (5) 224014341
senary (6) 33243141
septenary (7) 11340004
nonary (9) 1785367
undecimal (11) 624261
duodecimal (12) 4034b1
tridecimal (13) 290950
tetradecimal (14) 1c0c3b
pentadecimal (15) 14b9d1

As an angle

1,001,221° = 2,781 × 360° + 61°
61° ≈ 1.065 rad

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹
Egyptian hieroglyphic
𓁨𓆼𓍢𓍢𓎆𓎆𓏺
Chinese
一百萬一千二百二十一
Chinese (financial)
壹佰萬壹仟貳佰貳拾壹
In other modern scripts
Eastern Arabic ١٠٠١٢٢١ Devanagari १००१२२१ Bengali ১০০১২২১ Tamil ௧௦௦௧௨௨௧ Thai ๑๐๐๑๒๒๑ Tibetan ༡༠༠༡༢༢༡ Khmer ១០០១២២១ Lao ໑໐໐໑໒໒໑ Burmese ၁၀၀၁၂၂၁

Also seen as

Hex color
#0F4705
RGB(15, 71, 5)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.71.5.

Address
0.15.71.5
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.71.5

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 1,001,221 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