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1,020,201

1,020,201 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.).

1,020,201 (one million twenty thousand two hundred one) is an odd 7-digit number. It is a composite number with 32 divisors, and factors as 3 × 7 × 13 × 37 × 101. Its digits read the same forwards and backwards, so it is a palindromic number. Written other ways, in hexadecimal, 0xF9129.

Arithmetic Number Cube-Free Deficient Number Evil Number Happy Number Palindrome Self Number Squarefree

Interestingness

Properties

Parity
Odd
Digit count
7
Digit sum
6
Digit product
0
Digital root
6
Palindrome
Yes
Bit width
20 bits
Square (n²)
1,040,810,080,401
Cube (n³)
1,061,835,484,835,180,601
Divisor count
32
σ(n) — sum of divisors
1,736,448
φ(n) — Euler's totient
518,400
Sum of prime factors
161

Primality

Prime factorization: 3 × 7 × 13 × 37 × 101

Nearest primes: 1,020,163 (−38) · 1,020,223 (+22)

Divisors & multiples

All divisors (32)
1 · 3 · 7 · 13 · 21 · 37 · 39 · 91 · 101 · 111 · 259 · 273 · 303 · 481 · 707 · 777 · 1313 · 1443 · 2121 · 3367 · 3737 · 3939 · 9191 · 10101 · 11211 · 26159 · 27573 · 48581 · 78477 · 145743 · 340067 · 1020201
Aliquot sum (sum of proper divisors): 716,247
Factor pairs (a × b = 1,020,201)
1 × 1020201
3 × 340067
7 × 145743
13 × 78477
21 × 48581
37 × 27573
39 × 26159
91 × 11211
101 × 10101
111 × 9191
259 × 3939
273 × 3737
303 × 3367
481 × 2121
707 × 1443
777 × 1313
First multiples
1,020,201 · 2,040,402 (double) · 3,060,603 · 4,080,804 · 5,101,005 · 6,121,206 · 7,141,407 · 8,161,608 · 9,181,809 · 10,202,010

Sums & aliquot sequence

As consecutive integers: 510,100 + 510,101 340,066 + 340,067 + 340,068 170,031 + 170,032 + 170,033 + 170,034 + 170,035 + 170,036 145,740 + 145,741 + … + 145,746
Aliquot sequence: 1,020,201 716,247 466,233 207,687 72,249 24,087 14,825 3,589 135 105 87 33 15 9 4 3 1 — unresolved within range

Continued fraction of √n

√1,020,201 = [1010; (20, 2020)]

Period length 2 — the block in parentheses repeats forever.

Representations

In words
one million twenty thousand two hundred one
Ordinal
1020201st
Binary
11111001000100101001
Octal
3710451
Hexadecimal
0xF9129
Base64
D5Ep
One's complement
4,293,947,094 (32-bit)
Scientific notation
1.020201 × 10⁶
As a duration
1,020,201 s = 11 days, 19 hours, 23 minutes, 21 seconds
In other bases
ternary (3) 1220211110020
quaternary (4) 3321010221
quinary (5) 230121301
senary (6) 33511053
septenary (7) 11446230
nonary (9) 1824406
undecimal (11) 637546
duodecimal (12) 412489
tridecimal (13) 299490
tetradecimal (14) 1c7b17
pentadecimal (15) 152436

As an angle

1,020,201° = 2,833 × 360° + 321°
321° ≈ 5.603 rad
Compass bearing: NW (northwest)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒁹
Egyptian hieroglyphic
𓁨𓂍𓂍𓍢𓍢𓏺
Chinese
一百零二萬零二百零一
Chinese (financial)
壹佰零貳萬零貳佰零壹
In other modern scripts
Eastern Arabic ١٠٢٠٢٠١ Devanagari १०२०२०१ Bengali ১০২০২০১ Tamil ௧௦௨௦௨௦௧ Thai ๑๐๒๐๒๐๑ Tibetan ༡༠༢༠༢༠༡ Khmer ១០២០២០១ Lao ໑໐໒໐໒໐໑ Burmese ၁၀၂၀၂၀၁

Also seen as

Hex color
#0F9129
RGB(15, 145, 41)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.145.41.

Address
0.15.145.41
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.145.41

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

Possible date

Could be parsed as a date. Most likely interpretation: Friday, January 2, 0201 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 0201-02-01 (DMMYYYY (Euro, single-digit day))
  • 0201-10-02 (MMDYYYY (US, single-digit day))
  • 0201-02-10 (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 1,020,201 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