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135,081

135,081 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.).

135,081 (one hundred thirty-five thousand eighty-one) is an odd 6-digit number. It is a composite number with 8 divisors, and factors as 3³ × 5,003. Written other ways, in hexadecimal, 0x20FA9.

Arithmetic Number Deficient Number Happy Number Odious Number Recamán's Sequence

Interestingness

Properties

Parity
Odd
Digit count
6
Digit sum
18
Digit product
0
Digital root
9
Palindrome
No
Bit width
18 bits
Reversed
180,531
Recamán's sequence
a(36,394) = 135,081
Square (n²)
18,246,876,561
Cube (n³)
2,464,806,332,736,441
Divisor count
8
σ(n) — sum of divisors
200,160
φ(n) — Euler's totient
90,036
Sum of prime factors
5,012

Primality

Prime factorization: 3 3 × 5003

Nearest primes: 135,077 (−4) · 135,089 (+8)

Divisors & multiples

All divisors (8)
1 · 3 · 9 · 27 · 5003 · 15009 · 45027 · 135081
Aliquot sum (sum of proper divisors): 65,079
Factor pairs (a × b = 135,081)
1 × 135081
3 × 45027
9 × 15009
27 × 5003
First multiples
135,081 · 270,162 (double) · 405,243 · 540,324 · 675,405 · 810,486 · 945,567 · 1,080,648 · 1,215,729 · 1,350,810

Sums & aliquot sequence

As consecutive integers: 67,540 + 67,541 45,026 + 45,027 + 45,028 22,511 + 22,512 + 22,513 + 22,514 + 22,515 + 22,516 15,005 + 15,006 + … + 15,013
Aliquot sequence: 135,081 65,079 42,457 1 0 — terminates at zero

Continued fraction of √n

√135,081 = [367; (1, 1, 6, 1, 12, 3, 1, 5, 1, 4, 4, 1, 1, 2, 22, 1, 1, 2, 1, 1, 1, 11, 2, 2, …)]

Representations

In words
one hundred thirty-five thousand eighty-one
Ordinal
135081st
Binary
100000111110101001
Octal
407651
Hexadecimal
0x20FA9
Base64
Ag+p
One's complement
4,294,832,214 (32-bit)
Scientific notation
1.35081 × 10⁵
As a duration
135,081 s = 1 day, 13 hours, 31 minutes, 21 seconds
In other bases
ternary (3) 20212022000
quaternary (4) 200332221
quinary (5) 13310311
senary (6) 2521213
septenary (7) 1101552
nonary (9) 225260
undecimal (11) 92541
duodecimal (12) 66209
tridecimal (13) 4963b
tetradecimal (14) 37329
pentadecimal (15) 2a056

As an angle

135,081° = 375 × 360° + 81°
81° ≈ 1.414 rad
Compass bearing: E (east)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹 𒌋𒌋𒁹
Egyptian hieroglyphic
𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺
Greek (Milesian)
͵ρλεπαʹ
Mayan (base 20)
𝋰·𝋱·𝋮·𝋡
Chinese
一十三萬五千零八十一
Chinese (financial)
壹拾參萬伍仟零捌拾壹
In other modern scripts
Eastern Arabic ١٣٥٠٨١ Devanagari १३५०८१ Bengali ১৩৫০৮১ Tamil ௧௩௫௦௮௧ Thai ๑๓๕๐๘๑ Tibetan ༡༣༥༠༨༡ Khmer ១៣៥០៨១ Lao ໑໓໕໐໘໑ Burmese ၁၃၅၀၈၁

Also seen as

Unicode codepoint
𠾩
CJK Unified Ideograph-20Fa9
U+20FA9
Other letter (Lo)

UTF-8 encoding: F0 A0 BE A9 (4 bytes).

Hex color
#020FA9
RGB(2, 15, 169)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.15.169.

Address
0.2.15.169
Class
reserved
IPv4-mapped IPv6
::ffff:0.2.15.169

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 135,081 and was likely granted around 1872.

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

Position in π

The digit sequence 135081 first appears in π at position 95,019 of the decimal expansion (the 95,019ordinal-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.

Related reading

  • Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.