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142,005

142,005 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.).

142,005 (one hundred forty-two thousand five) is an odd 6-digit number. It is a composite number with 8 divisors, and factors as 3 × 5 × 9,467. Written other ways, in hexadecimal, 0x22AB5.

Arithmetic Number Cube-Free Deficient Number Gapful Number Odious Number Recamán's Sequence Sphenic Number Squarefree

Interestingness

Properties

Parity
Odd
Digit count
6
Digit sum
12
Digit product
0
Digital root
3
Palindrome
No
Bit width
18 bits
Reversed
500,241
Recamán's sequence
a(484,817) = 142,005
Square (n²)
20,165,420,025
Cube (n³)
2,863,590,470,650,125
Divisor count
8
σ(n) — sum of divisors
227,232
φ(n) — Euler's totient
75,728
Sum of prime factors
9,475

Primality

Prime factorization: 3 × 5 × 9467

Nearest primes: 141,991 (−14) · 142,007 (+2)

Divisors & multiples

All divisors (8)
1 · 3 · 5 · 15 · 9467 · 28401 · 47335 · 142005
Aliquot sum (sum of proper divisors): 85,227
Factor pairs (a × b = 142,005)
1 × 142005
3 × 47335
5 × 28401
15 × 9467
First multiples
142,005 · 284,010 (double) · 426,015 · 568,020 · 710,025 · 852,030 · 994,035 · 1,136,040 · 1,278,045 · 1,420,050

Sums & aliquot sequence

As consecutive integers: 71,002 + 71,003 47,334 + 47,335 + 47,336 28,399 + 28,400 + 28,401 + 28,402 + 28,403 23,665 + 23,666 + 23,667 + 23,668 + 23,669 + 23,670
Aliquot sequence: 142,005 85,227 28,413 24,003 16,957 579 197 1 0 — terminates at zero

Continued fraction of √n

√142,005 = [376; (1, 5, 12, 1, 1, 1, 1, 4, 1, 4, 1, 1, 10, 14, 1, 2, 6, 2, 4, 2, 1, 1, 37, 10, …)]

Representations

In words
one hundred forty-two thousand five
Ordinal
142005th
Binary
100010101010110101
Octal
425265
Hexadecimal
0x22AB5
Base64
Aiq1
One's complement
4,294,825,290 (32-bit)
Scientific notation
1.42005 × 10⁵
As a duration
142,005 s = 1 day, 15 hours, 26 minutes, 45 seconds
In other bases
ternary (3) 21012210110
quaternary (4) 202222311
quinary (5) 14021010
senary (6) 3013233
septenary (7) 1131003
nonary (9) 235713
undecimal (11) 97766
duodecimal (12) 6a219
tridecimal (13) 4c836
tetradecimal (14) 39a73
pentadecimal (15) 2c120

As an angle

142,005° = 394 × 360° + 165°
165° ≈ 2.88 rad
Compass bearing: SSE (south-southeast)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ρμβεʹ
Mayan (base 20)
𝋱·𝋯·𝋠·𝋥
Chinese
一十四萬二千零五
Chinese (financial)
壹拾肆萬貳仟零伍
In other modern scripts
Eastern Arabic ١٤٢٠٠٥ Devanagari १४२००५ Bengali ১৪২০০৫ Tamil ௧௪௨௦௦௫ Thai ๑๔๒๐๐๕ Tibetan ༡༤༢༠༠༥ Khmer ១៤២០០៥ Lao ໑໔໒໐໐໕ Burmese ၁၄၂၀၀၅

Also seen as

Unicode codepoint
𢪵
CJK Unified Ideograph-22Ab5
U+22AB5
Other letter (Lo)

UTF-8 encoding: F0 A2 AA B5 (4 bytes).

Hex color
#022AB5
RGB(2, 42, 181)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.42.181.

Address
0.2.42.181
Class
reserved
IPv4-mapped IPv6
::ffff:0.2.42.181

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 142,005 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 142005 first appears in π at position 281,696 of the decimal expansion (the 281,696ordinal-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°.