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100,649

100,649 is a prime, 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.).
Arithmetic Number Chen Prime Deficient Number Odious Number Pernicious Number Prime Pythagorean Prime Recamán's Sequence Self Number Squarefree

Properties

Parity
Odd
Digit count
6
Digit sum
20
Digit product
0
Digital root
2
Palindrome
No
Bit width
17 bits
Reversed
946,001
Recamán's sequence
a(255,418) = 100,649
Square (n²)
10,130,221,201
Cube (n³)
1,019,596,633,659,449
Divisor count
2
σ(n) — sum of divisors
100,650
φ(n) — Euler's totient
100,648

Primality

100,649 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)
1 · 100649
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 100,649)
1 × 100649
First multiples
100,649 · 201,298 (double) · 301,947 · 402,596 · 503,245 · 603,894 · 704,543 · 805,192 · 905,841 · 1,006,490

Sums & aliquot sequence

As a sum of two squares: 80² + 307²
As consecutive integers: 50,324 + 50,325

Continued fraction of √n

√100,649 = [317; (3, 1, 26, 1, 5, 7, 3, 2, 1, 2, 1, 2, 1, 2, 1, 1, 3, 1, 78, 1, 1, 7, 2, 2, …)]

Representations

In words
one hundred thousand six hundred forty-nine
Ordinal
100649th
Binary
11000100100101001
Octal
304451
Hexadecimal
0x18929
Base64
AYkp
One's complement
4,294,866,646 (32-bit)
Scientific notation
1.00649 × 10⁵
In other bases
ternary (3) 12010001202
quaternary (4) 120210221
quinary (5) 11210044
senary (6) 2053545
septenary (7) 566303
nonary (9) 163052
undecimal (11) 6968a
duodecimal (12) 4a2b5
tridecimal (13) 36a73
tetradecimal (14) 28973
pentadecimal (15) 1ec4e

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ρχμθʹ
Mayan (base 20)
𝋬·𝋫·𝋬·𝋩
Chinese
一十萬零六百四十九
Chinese (financial)
壹拾萬零陸佰肆拾玖
In other modern scripts
Eastern Arabic ١٠٠٦٤٩ Devanagari १००६४९ Bengali ১০০৬৪৯ Tamil ௧௦௦௬௪௯ Thai ๑๐๐๖๔๙ Tibetan ༡༠༠༦༤༩ Khmer ១០០៦៤៩ Lao ໑໐໐໖໔໙ Burmese ၁၀၀၆၄၉

Also seen as

Prime neighborhood

Adjacent primes:

Unicode codepoint
𘤩
Tangut Component-298
U+18929
Other letter (Lo)

UTF-8 encoding: F0 98 A4 A9 (4 bytes).

Hex color
#018929
RGB(1, 137, 41)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.1.137.41.

Address
0.1.137.41
Class
reserved
IPv4-mapped IPv6
::ffff:0.1.137.41

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 100,649 and was likely granted around 1870.

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