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101,081

101,081 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 Cube-Free Deficient Number Flippable Odious Number Prime Pythagorean Prime Recamán's Sequence Squarefree

Properties

Parity
Odd
Digit count
6
Digit sum
11
Digit product
0
Digital root
2
Palindrome
No
Bit width
17 bits
Reversed
180,101
Flips to (rotate 180°)
180,101
Recamán's sequence
a(98,637) = 101,081
Square (n²)
10,217,368,561
Cube (n³)
1,032,781,831,514,441
Divisor count
2
σ(n) — sum of divisors
101,082
φ(n) — Euler's totient
101,080

Primality

101,081 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)
1 · 101081
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 101,081)
1 × 101081
First multiples
101,081 · 202,162 (double) · 303,243 · 404,324 · 505,405 · 606,486 · 707,567 · 808,648 · 909,729 · 1,010,810

Sums & aliquot sequence

As a sum of two squares: 35² + 316²
As consecutive integers: 50,540 + 50,541

Continued fraction of √n

√101,081 = [317; (1, 13, 1, 3, 1, 2, 1, 7, 4, 1, 2, 1, 1, 1, 2, 1, 1, 5, 10, 4, 11, 1, 3, 17, …)]

Representations

In words
one hundred one thousand eighty-one
Ordinal
101081st
Binary
11000101011011001
Octal
305331
Hexadecimal
0x18AD9
Base64
AYrZ
One's complement
4,294,866,214 (32-bit)
Scientific notation
1.01081 × 10⁵
In other bases
ternary (3) 12010122202
quaternary (4) 120223121
quinary (5) 11213311
senary (6) 2055545
septenary (7) 600461
nonary (9) 163582
undecimal (11) 69a42
duodecimal (12) 4a5b5
tridecimal (13) 37016
tetradecimal (14) 28ba1
pentadecimal (15) 1ee3b

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹
Egyptian hieroglyphic
𓆐𓆼𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺
Greek (Milesian)
͵ραπαʹ
Mayan (base 20)
𝋬·𝋬·𝋮·𝋡
Chinese
一十萬一千零八十一
Chinese (financial)
壹拾萬壹仟零捌拾壹
In other modern scripts
Eastern Arabic ١٠١٠٨١ Devanagari १०१०८१ Bengali ১০১০৮১ Tamil ௧௦௧௦௮௧ Thai ๑๐๑๐๘๑ Tibetan ༡༠༡༠༨༡ Khmer ១០១០៨១ Lao ໑໐໑໐໘໑ Burmese ၁၀၁၀၈၁

Also seen as

Prime neighborhood

Adjacent primes:

Unicode codepoint
𘫙
Tangut Component-730
U+18AD9
Other letter (Lo)

UTF-8 encoding: F0 98 AB 99 (4 bytes).

Hex color
#018AD9
RGB(1, 138, 217)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.1.138.217.

Address
0.1.138.217
Class
reserved
IPv4-mapped IPv6
::ffff:0.1.138.217

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 101,081 and was likely granted around 1870.

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

Position in π

The digit sequence 101081 first appears in π at position 114,820 of the decimal expansion (the 114,820ordinal-suffix:th digit after the integer 3).

Search range: the first 1,000,000 fractional digits of π. Any 6-digit-or-shorter string is virtually guaranteed to appear in there — the more interesting signal is the position.