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142,985

142,985 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.).

142,985 (one hundred forty-two thousand nine hundred eighty-five) is an odd 6-digit number. It is a composite number with 4 divisors, and factors as 5 × 28,597. Written other ways, in hexadecimal, 0x22E89.

Arithmetic Number Cube-Free Deficient Number Evil Number Recamán's Sequence Semiprime Squarefree

Interestingness

Properties

Parity
Odd
Digit count
6
Digit sum
29
Digit product
2,880
Digital root
2
Palindrome
No
Bit width
18 bits
Reversed
589,241
Recamán's sequence
a(222,446) = 142,985
Square (n²)
20,444,710,225
Cube (n³)
2,923,286,891,521,625
Divisor count
4
σ(n) — sum of divisors
171,588
φ(n) — Euler's totient
114,384
Sum of prime factors
28,602

Primality

Prime factorization: 5 × 28597

Nearest primes: 142,981 (−4) · 142,993 (+8)

Divisors & multiples

All divisors (4)
1 · 5 · 28597 · 142985
Aliquot sum (sum of proper divisors): 28,603
Factor pairs (a × b = 142,985)
1 × 142985
5 × 28597
First multiples
142,985 · 285,970 (double) · 428,955 · 571,940 · 714,925 · 857,910 · 1,000,895 · 1,143,880 · 1,286,865 · 1,429,850

Sums & aliquot sequence

As a sum of two squares: 157² + 344² = 181² + 332²
As consecutive integers: 71,492 + 71,493 28,595 + 28,596 + 28,597 + 28,598 + 28,599 14,294 + 14,295 + … + 14,303
Aliquot sequence: 142,985 28,603 1 0 — terminates at zero

Continued fraction of √n

√142,985 = [378; (7, 2, 17, 1, 46, 3, 8, 1, 1, 3, 3, 1, 2, 11, 2, 5, 12, 4, 1, 1, 1, 4, 2, 1, …)]

Representations

In words
one hundred forty-two thousand nine hundred eighty-five
Ordinal
142985th
Binary
100010111010001001
Octal
427211
Hexadecimal
0x22E89
Base64
Ai6J
One's complement
4,294,824,310 (32-bit)
Scientific notation
1.42985 × 10⁵
As a duration
142,985 s = 1 day, 15 hours, 43 minutes, 5 seconds
In other bases
ternary (3) 21021010202
quaternary (4) 202322021
quinary (5) 14033420
senary (6) 3021545
septenary (7) 1133603
nonary (9) 237122
undecimal (11) 98477
duodecimal (12) 6a8b5
tridecimal (13) 5010b
tetradecimal (14) 3a173
pentadecimal (15) 2c575

As an angle

142,985° = 397 × 360° + 65°
65° ≈ 1.134 rad
Compass bearing: ENE (east-northeast)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ρμβϡπεʹ
Mayan (base 20)
𝋱·𝋱·𝋩·𝋥
Chinese
一十四萬二千九百八十五
Chinese (financial)
壹拾肆萬貳仟玖佰捌拾伍
In other modern scripts
Eastern Arabic ١٤٢٩٨٥ Devanagari १४२९८५ Bengali ১৪২৯৮৫ Tamil ௧௪௨௯௮௫ Thai ๑๔๒๙๘๕ Tibetan ༡༤༢༩༨༥ Khmer ១៤២៩៨៥ Lao ໑໔໒໙໘໕ Burmese ၁၄၂၉၈၅

Also seen as

Unicode codepoint
𢺉
CJK Unified Ideograph-22E89
U+22E89
Other letter (Lo)

UTF-8 encoding: F0 A2 BA 89 (4 bytes).

Hex color
#022E89
RGB(2, 46, 137)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.46.137.

Address
0.2.46.137
Class
reserved
IPv4-mapped IPv6
::ffff:0.2.46.137

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 142,985 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 142985 first appears in π at position 211,464 of the decimal expansion (the 211,464ordinal-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

  • Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.