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Number

136

136 is a composite number, even, a calendar year.

Ascending Digits Deficient Number Evil Number Pernicious Number Recamán's Sequence Triangular Year

Historical context — 136 AD

Calendar year

Year 136 (CXXXVI) was a leap year starting on Saturday of the Julian calendar, the 136th Year of the Common Era (CE) and Anno Domini (AD) designations, the 136th year of the 1st millennium, the 36th year of the 2nd century, and the 7th year of the 130s decade.

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Historical context — 136 BC

Calendar year

Year 136 BC was a year of the pre-Julian Roman calendar.

Excerpt from Wikipedia (en) ↗ · Licensed CC BY-SA 4.0 · English fallback Read the full article on Wikipedia →

Year facts

Year type
Leap year
Divisible by 4 and not by 100; February has 29 days.
Days in year
366
ISO weeks
52
Started on
Sunday
January 1, 136
Ended on
Monday
December 31, 136
Friday the 13ths
3
3 Friday the 13ths this year.
Decade
130s
130–139
Century
2nd century
101–200
Millennium
1st millennium
1–1000
Years ago
1,890
1890 years before 2026.

In other calendars

Hebrew
3896 / 3897 AM
Rosh Hashanah falls in September/October.
Chinese
Year of the zodiac:Fire zodiac:Rat
Sexagenary cycle position 13 of 60. Lunar new year falls in late January / mid-February.
Buddhist Era
679 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
Ethiopian
128 / 129 ET
Year boundary at Enkutatash (September 11/12).
Indian National (Saka)
58 / 57 Saka
Indian national calendar; year starts in March.

Properties

Parity
Even
Digit count
3
Digit sum
10
Digit product
18
Digital root
1
Palindrome
No
Bit width
8 bits
Reversed
631
Recamán's sequence
a(124) = 136
Square (n²)
18,496
Cube (n³)
2,515,456
Divisor count
8
σ(n) — sum of divisors
270
φ(n) — Euler's totient
64
Sum of prime factors
23

Primality

Prime factorization: 2 3 × 17

Nearest primes: 131 (−5) · 137 (+1)

Divisors & multiples

All divisors (8)
1 · 2 · 4 · 8 · 17 · 34 · 68 (half) · 136
Aliquot sum (sum of proper divisors): 134
Factor pairs (a × b = 136)
1 × 136
2 × 68
4 × 34
8 × 17
First multiples
136 · 272 (double) · 408 · 544 · 680 · 816 · 952 · 1,088 · 1,224 · 1,360

Sums & aliquot sequence

As a sum of two squares: 6² + 10²
As consecutive integers: 1 + 2 + … + 16
Aliquot sequence: 136 134 70 74 40 50 43 1 0 — terminates at zero

Representations

In words
one hundred thirty-six
Ordinal
136th
Roman numeral
CXXXVI
Binary
10001000
Octal
210
Hexadecimal
0x88
Base64
iA==
One's complement
119 (8-bit)
In other bases
ternary (3) 12001
quaternary (4) 2020
quinary (5) 1021
senary (6) 344
septenary (7) 253
nonary (9) 161
undecimal (11) 114
duodecimal (12) b4
tridecimal (13) a6
tetradecimal (14) 9a
pentadecimal (15) 91

Historical numeral systems

Babylonian (base 60)
𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓍢𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
ρλϛʹ
Mayan (base 20)
𝋦·𝋰
Chinese
一百三十六
Chinese (financial)
壹佰參拾陸
In other modern scripts
Eastern Arabic ١٣٦ Devanagari १३६ Bengali ১৩৬ Tamil ௧௩௬ Thai ๑๓๖ Tibetan ༡༣༦ Khmer ១៣៦ Lao ໑໓໖ Burmese ၁၃၆

Digit at this position in famous constants

π — Pi (π)
Digit 136 = 2
e — Euler's number (e)
Digit 136 = 3
φ — Golden ratio (φ)
Digit 136 = 6
√2 — Pythagoras's (√2)
Digit 136 = 7
ln 2 — Natural log of 2
Digit 136 = 0
γ — Euler-Mascheroni (γ)
Digit 136 = 2

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 136, here are decompositions:

  • 5 + 131 = 136
  • 23 + 113 = 136
  • 29 + 107 = 136
  • 47 + 89 = 136
  • 53 + 83 = 136
Unicode codepoint
ˆ
Character Tabulation Set
U+0088
Control character (Cc)

UTF-8 encoding: C2 88 (2 bytes).

Hex color
#000088
RGB(0, 0, 136)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.0.136.

Address
0.0.0.136
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.0.136

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

Possible US bank routing number

This passes the ABA routing number checksum and matches the Federal Reserve numbering scheme.

Routing number
000000136
Federal Reserve
United States Government

Banks operate many routing numbers per state and division; an unmatched checksum-valid number can still be a real RTN at a smaller institution.