Live analysis

1,015,221

1,015,221 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.).

1,015,221 (one million fifteen thousand two hundred twenty-one) is an odd 7-digit number. It is a composite number with 4 divisors, and factors as 3 × 338,407. Written other ways, in hexadecimal, 0xF7DB5.

Arithmetic Number Cube-Free Deficient Number Odious Number Recamán's Sequence Semiprime Squarefree

Interestingness

★ ★ ★ ☆ ☆

5 notable facts · grade C

1,015,209 1,015,210 1,015,211 1,015,212 1,015,213 1,015,214 1,015,215 1,015,216 1,015,217 1,015,218 1,015,219 1,015,220 1,015,221 1,015,222 1,015,223 1,015,224 1,015,225 1,015,226 1,015,227 1,015,228 1,015,229 1,015,230 1,015,231 1,015,232 1,015,233

less more

Properties

Parity: Odd
Digit count: 7
Digit sum: 12
Digit product: 0
Digital root: 3
Palindrome: No
Bit width: 20 bits
Reversed: 1,225,101
Recamán's sequence: a(364,425) = 1,015,221
Square (n²): 1,030,673,678,841
Cube (n³): 1,046,361,562,906,638,861
Divisor count: 4
σ(n) — sum of divisors: 1,353,632
φ(n) — Euler's totient: 676,812
Sum of prime factors: 338,410

Primality

Prime factorization: 3 × 338407

Nearest primes: 1,015,207 (−14) · 1,015,277 (+56)

Divisors & multiples

All divisors (4)

1 · 3 · 338407 · 1015221

Aliquot sum (sum of proper divisors): 338,411

Factor pairs (a × b = 1,015,221)

1 × 1015221

3 × 338407

First multiples

1,015,221 · 2,030,442 (double) · 3,045,663 · 4,060,884 · 5,076,105 · 6,091,326 · 7,106,547 · 8,121,768 · 9,136,989 · 10,152,210

Sums & aliquot sequence

As consecutive integers: 507,610 + 507,611 338,406 + 338,407 + 338,408 169,201 + 169,202 + 169,203 + 169,204 + 169,205 + 169,206

Aliquot sequence: 1,015,221 → 338,411 → 1 → 0 — terminates at zero

Continued fraction of √n

√1,015,221 = [1007; (1, 1, 2, 1, 1, 3, 1, 4, 1, 3, 14, 7, 1, 1, 6, 1, 3, 1, 6, 1, 21, 1, 3, 2, …)]

Representations

In words: one million fifteen thousand two hundred twenty-one
Ordinal: 1015221st
Binary: 11110111110110110101
Octal: 3676665
Hexadecimal: 0xF7DB5
Base64: D321
One's complement: 4,293,952,074 (32-bit)
Scientific notation: 1.015221 × 10⁶
As a duration: 1,015,221 s = 11 days, 18 hours, 21 seconds

In other bases

ternary (3) 1220120121210

quaternary (4) 3313312311

quinary (5) 224441341

senary (6) 33432033

septenary (7) 11425554

nonary (9) 1816553

undecimal (11) 633829

duodecimal (12) 40b619

tridecimal (13) 29712c

tetradecimal (14) 1c5d9b

pentadecimal (15) 150c16

As an angle

1,015,221° = 2,820 × 360° + 21°

21° ≈ 0.367 rad

Compass bearing: NNE (north-northeast)

Why does a circle have 360 degrees? →

Historical numeral systems

Babylonian (base 60): 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹 · 𒌋𒌋𒁹
Egyptian hieroglyphic: 𓁨𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓎆𓎆𓏺
Chinese: 一百零一萬五千二百二十一
Chinese (financial): 壹佰零壹萬伍仟貳佰貳拾壹

In other modern scripts

Eastern Arabic ١٠١٥٢٢١ Devanagari १०१५२२१ Bengali ১০১৫২২১ Tamil ௧௦௧௫௨௨௧ Thai ๑๐๑๕๒๒๑ Tibetan ༡༠༡༥༢༢༡ Khmer ១០១៥២២១ Lao ໑໐໑໕໒໒໑ Burmese ၁၀၁၅၂၂၁

Also seen as

Hex color

#0F7DB5

RGB(15, 125, 181)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.125.181.

Address: 0.15.125.181
Class: reserved
IPv4-mapped IPv6: ::ffff:0.15.125.181

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

Possible date

Could be parsed as a date. Most likely interpretation: Friday, January 1, 5221 (MDDYYYY (US, single-digit month)).

Other possible interpretations (2)

5221-10-01 (MMDYYYY (US, single-digit day))
5221-01-10 (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 1,015,221 and was likely granted around 1911.

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

Look up US1,015,221 on Google Patents ↗ Look up on USPTO ↗