Number

162

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

Abundant Number Harshad / Niven Odious Number Pernicious Number Practical Number Recamán's Sequence Semiperfect Number Year

Historical context — 162 AD

Calendar year

Year 162 (CLXII) was a common year starting on Thursday of the Julian calendar.

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

Historical context — 162 BC

Calendar year

Year 162 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: 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: Friday
January 1, 162
Ended on: Friday
December 31, 162
Friday the 13ths: 1
One Friday the 13th this year.
Decade: 160s
160–169
Century: 2nd century
101–200
Millennium: 1st millennium
1–1000
Years ago: 1,864
1864 years before 2026.

In other calendars

Hebrew: 3922 / 3923 AM
Rosh Hashanah falls in September/October.
Chinese: Year of the zodiac:Water zodiac:Tiger
Sexagenary cycle position 39 of 60. Lunar new year falls in late January / mid-February.
Buddhist Era: 705 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
Ethiopian: 154 / 155 ET
Year boundary at Enkutatash (September 11/12).
Indian National (Saka): 84 / 83 Saka
Indian national calendar; year starts in March.

Properties

Parity: Even
Digit count: 3
Digit sum: 9
Digit product: 12
Digital root: 9
Palindrome: No
Bit width: 8 bits
Reversed: 261
Recamán's sequence: a(96) = 162
Square (n²): 26,244
Cube (n³): 4,251,528
Divisor count: 10
σ(n) — sum of divisors: 363
φ(n) — Euler's totient: 54
Sum of prime factors: 14

Primality

Prime factorization: 2 × 3 ⁴

Nearest primes: 157 (−5) · 163 (+1)

Divisors & multiples

All divisors (10)

1 · 2 · 3 · 6 · 9 · 18 · 27 · 54 · 81 (half) · 162

Aliquot sum (sum of proper divisors): 201

Factor pairs (a × b = 162)

1 × 162

2 × 81

3 × 54

6 × 27

9 × 18

First multiples

162 · 324 (double) · 486 · 648 · 810 · 972 · 1,134 · 1,296 · 1,458 · 1,620

Sums & aliquot sequence

As a sum of two squares: 9² + 9²

As consecutive integers: 53 + 54 + 55 39 + 40 + 41 + 42 14 + 15 + … + 22 8 + 9 + … + 19

Aliquot sequence: 162 → 201 → 71 → 1 → 0 — terminates at zero

Representations

In words: one hundred sixty-two
Ordinal: 162nd
Roman numeral: CLXII
Binary: 10100010
Octal: 242
Hexadecimal: 0xA2
Base64: og==
One's complement: 93 (8-bit)

In other bases

ternary (3) 20000

quaternary (4) 2202

quinary (5) 1122

senary (6) 430

septenary (7) 321

nonary (9) 200

undecimal (11) 138

duodecimal (12) 116

tridecimal (13) c6

tetradecimal (14) b8

pentadecimal (15) ac

Historical numeral systems

Babylonian (base 60): 𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹
Egyptian hieroglyphic: 𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺
Greek (Milesian): ρξβʹ
Mayan (base 20): 𝋨·𝋢
Chinese: 一百六十二
Chinese (financial): 壹佰陸拾貳

In other modern scripts

Eastern Arabic ١٦٢ Devanagari १६२ Bengali ১৬২ Tamil ௧௬௨ Thai ๑๖๒ Tibetan ༡༦༢ Khmer ១៦២ Lao ໑໖໒ Burmese ၁၆၂

Digit at this position in famous constants

π — Pi (π): Digit 162 = 8
e — Euler's number (e): Digit 162 = 3
φ — Golden ratio (φ): Digit 162 = 8
√2 — Pythagoras's (√2): Digit 162 = 2
ln 2 — Natural log of 2: Digit 162 = 2
γ — Euler-Mascheroni (γ): Digit 162 = 0

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 162, here are decompositions:

5 + 157 = 162
11 + 151 = 162
13 + 149 = 162
23 + 139 = 162
31 + 131 = 162
53 + 109 = 162
59 + 103 = 162
61 + 101 = 162

Showing the first eight; more decompositions exist.

Unicode codepoint

Cent Sign

U+00A2

Currency symbol (Sc)

UTF-8 encoding: C2 A2 (2 bytes).

Lookup U+00A2 on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#0000A2

RGB(0, 0, 162)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.0.162.

Address: 0.0.0.162
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.0.162

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