Number

146

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

Ascending Digits Deficient Number Odious Number Pernicious Number Recamán's Sequence Semiprime Squarefree Year

Historical context — 146 AD

Calendar year

Year 146 (CXLVI) was a common year starting on Friday of the Julian calendar.

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

Notable events — 146 BC

Undated Rome destroys Carthage and sacks Corinth; both become Roman provinces.

Events compiled from Wikipedia ↗ · Licensed CC BY-SA 4.0

Year facts

Year type: Common year
Standard 365-day year; not divisible by 4 (or divisible by 100 but not 400).
Days in year: 365
ISO weeks: 52
Started on: Saturday
January 1, 146
Ended on: Saturday
December 31, 146
Friday the 13ths: 1
One Friday the 13th this year.
Decade: 140s
140–149
Century: 2nd century
101–200
Millennium: 1st millennium
1–1000
Years ago: 1,880
1880 years before 2026.

In other calendars

Hebrew: 3906 / 3907 AM
Rosh Hashanah falls in September/October.
Chinese: Year of the zodiac:Fire zodiac:Dog
Sexagenary cycle position 23 of 60. Lunar new year falls in late January / mid-February.
Buddhist Era: 689 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
Ethiopian: 138 / 139 ET
Year boundary at Enkutatash (September 11/12).
Indian National (Saka): 68 / 67 Saka
Indian national calendar; year starts in March.

Properties

Parity: Even
Digit count: 3
Digit sum: 11
Digit product: 24
Digital root: 2
Palindrome: No
Bit width: 8 bits
Reversed: 641
Recamán's sequence: a(740) = 146
Square (n²): 21,316
Cube (n³): 3,112,136
Divisor count: 4
σ(n) — sum of divisors: 222
φ(n) — Euler's totient: 72
Sum of prime factors: 75

Primality

Prime factorization: 2 × 73

Nearest primes: 139 (−7) · 149 (+3)

Divisors & multiples

All divisors (4)

1 · 2 · 73 (half) · 146

Aliquot sum (sum of proper divisors): 76

Factor pairs (a × b = 146)

1 × 146

2 × 73

First multiples

146 · 292 (double) · 438 · 584 · 730 · 876 · 1,022 · 1,168 · 1,314 · 1,460

Sums & aliquot sequence

As a sum of two squares: 5² + 11²

As consecutive integers: 35 + 36 + 37 + 38

Aliquot sequence: 146 → 76 → 64 → 63 → 41 → 1 → 0 — terminates at zero

Representations

In words: one hundred forty-six
Ordinal: 146th
Roman numeral: CXLVI
Binary: 10010010
Octal: 222
Hexadecimal: 0x92
Base64: kg==
One's complement: 109 (8-bit)

In other bases

ternary (3) 12102

quaternary (4) 2102

quinary (5) 1041

senary (6) 402

septenary (7) 266

nonary (9) 172

undecimal (11) 123

duodecimal (12) 102

tridecimal (13) b3

tetradecimal (14) a6

pentadecimal (15) 9b

Historical numeral systems

Babylonian (base 60): 𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic: 𓍢𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian): ρμϛʹ
Mayan (base 20): 𝋧·𝋦
Chinese: 一百四十六
Chinese (financial): 壹佰肆拾陸

In other modern scripts

Eastern Arabic ١٤٦ Devanagari १४६ Bengali ১৪৬ Tamil ௧௪௬ Thai ๑๔๖ Tibetan ༡༤༦ Khmer ១៤៦ Lao ໑໔໖ Burmese ၁၄၆

Digit at this position in famous constants

π — Pi (π): Digit 146 = 4
e — Euler's number (e): Digit 146 = 2
φ — Golden ratio (φ): Digit 146 = 0
√2 — Pythagoras's (√2): Digit 146 = 4
ln 2 — Natural log of 2: Digit 146 = 7
γ — Euler-Mascheroni (γ): Digit 146 = 9

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 146, here are decompositions:

7 + 139 = 146
19 + 127 = 146
37 + 109 = 146
43 + 103 = 146
67 + 79 = 146
73 + 73 = 146

Unicode codepoint

Private Use Two

U+0092

Control character (Cc)

UTF-8 encoding: C2 92 (2 bytes).

Lookup U+0092 on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#000092

RGB(0, 0, 146)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.0.146.

Address: 0.0.0.146
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.0.146

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