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1,000,155

1,000,155 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.).

1,000,155 (one million one hundred fifty-five) is an odd 7-digit number. It is a composite number with 32 divisors, and factors as 3 × 5 × 13 × 23 × 223. Written other ways, in hexadecimal, 0xF42DB.

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

Interestingness

Properties

Parity
Odd
Digit count
7
Digit sum
12
Digit product
0
Digital root
3
Palindrome
No
Bit width
20 bits
Reversed
5,510,001
Square (n²)
1,000,310,024,025
Cube (n³)
1,000,465,072,078,723,875
Divisor count
32
σ(n) — sum of divisors
1,806,336
φ(n) — Euler's totient
468,864
Sum of prime factors
267

Primality

Prime factorization: 3 × 5 × 13 × 23 × 223

Nearest primes: 1,000,151 (−4) · 1,000,159 (+4)

Divisors & multiples

All divisors (32)
1 · 3 · 5 · 13 · 15 · 23 · 39 · 65 · 69 · 115 · 195 · 223 · 299 · 345 · 669 · 897 · 1115 · 1495 · 2899 · 3345 · 4485 · 5129 · 8697 · 14495 · 15387 · 25645 · 43485 · 66677 · 76935 · 200031 · 333385 · 1000155
Aliquot sum (sum of proper divisors): 806,181
Factor pairs (a × b = 1,000,155)
1 × 1000155
3 × 333385
5 × 200031
13 × 76935
15 × 66677
23 × 43485
39 × 25645
65 × 15387
69 × 14495
115 × 8697
195 × 5129
223 × 4485
299 × 3345
345 × 2899
669 × 1495
897 × 1115
First multiples
1,000,155 · 2,000,310 (double) · 3,000,465 · 4,000,620 · 5,000,775 · 6,000,930 · 7,001,085 · 8,001,240 · 9,001,395 · 10,001,550

Sums & aliquot sequence

As consecutive integers: 500,077 + 500,078 333,384 + 333,385 + 333,386 200,029 + 200,030 + 200,031 + 200,032 + 200,033 166,690 + 166,691 + 166,692 + 166,693 + 166,694 + 166,695
Aliquot sequence: 1,000,155 806,181 279,579 102,453 50,763 16,925 4,093 1 0 — terminates at zero

Continued fraction of √n

√1,000,155 = [1000; (12, 1, 9, 2, 1, 1, 2, 2, 10, 18, 1, 20, 3, 40, 2, 28, 2, 40, 3, 20, 1, 18, 10, 2, …)]

Period length 32 — the block in parentheses repeats forever.

Representations

In words
one million one hundred fifty-five
Ordinal
1000155th
Binary
11110100001011011011
Octal
3641333
Hexadecimal
0xF42DB
Base64
D0Lb
One's complement
4,293,967,140 (32-bit)
Scientific notation
1.000155 × 10⁶
As a duration
1,000,155 s = 11 days, 13 hours, 49 minutes, 15 seconds
In other bases
ternary (3) 1212210221210
quaternary (4) 3310023123
quinary (5) 224001110
senary (6) 33234203
septenary (7) 11333622
nonary (9) 1783853
undecimal (11) 623482
duodecimal (12) 402963
tridecimal (13) 290310
tetradecimal (14) 1c06b9
pentadecimal (15) 14b520

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓁨𓍢𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺
Chinese
一百萬零一百五十五
Chinese (financial)
壹佰萬零壹佰伍拾伍
In other modern scripts
Eastern Arabic ١٠٠٠١٥٥ Devanagari १०००१५५ Bengali ১০০০১৫৫ Tamil ௧௦௦௦௧௫௫ Thai ๑๐๐๐๑๕๕ Tibetan ༡༠༠༠༡༥༥ Khmer ១០០០១៥៥ Lao ໑໐໐໐໑໕໕ Burmese ၁၀၀၀၁၅၅

Also seen as

Hex color
#0F42DB
RGB(15, 66, 219)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.66.219.

Address
0.15.66.219
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.66.219

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 1,000,155 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