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133,681

133,681 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.).

133,681 (one hundred thirty-three thousand six hundred eighty-one) is an odd 6-digit number. It is a composite number with 4 divisors, and factors as 37 × 3,613. Written other ways, in hexadecimal, 0x20A31.

Arithmetic Number Cube-Free Deficient Number Evil Number Semiprime Squarefree

Interestingness

Properties

Parity
Odd
Digit count
6
Digit sum
22
Digit product
432
Digital root
4
Palindrome
No
Bit width
18 bits
Reversed
186,331
Square (n²)
17,870,609,761
Cube (n³)
2,388,960,983,460,241
Divisor count
4
σ(n) — sum of divisors
137,332
φ(n) — Euler's totient
130,032
Sum of prime factors
3,650

Primality

Prime factorization: 37 × 3613

Nearest primes: 133,673 (−8) · 133,691 (+10)

Divisors & multiples

All divisors (4)
1 · 37 · 3613 · 133681
Aliquot sum (sum of proper divisors): 3,651
Factor pairs (a × b = 133,681)
1 × 133681
37 × 3613
First multiples
133,681 · 267,362 (double) · 401,043 · 534,724 · 668,405 · 802,086 · 935,767 · 1,069,448 · 1,203,129 · 1,336,810

Sums & aliquot sequence

As a sum of two squares: 209² + 300² = 216² + 295²
As consecutive integers: 66,840 + 66,841 3,595 + 3,596 + … + 3,631 1,770 + 1,771 + … + 1,843
Aliquot sequence: 133,681 3,651 1,221 603 281 1 0 — terminates at zero

Continued fraction of √n

√133,681 = [365; (1, 1, 1, 1, 1, 17, 4, 1, 3, 14, 1, 33, 1, 7, 1, 5, 4, 1, 6, 1, 8, 6, 2, 2, …)]

Representations

In words
one hundred thirty-three thousand six hundred eighty-one
Ordinal
133681st
Binary
100000101000110001
Octal
405061
Hexadecimal
0x20A31
Base64
Agox
One's complement
4,294,833,614 (32-bit)
Scientific notation
1.33681 × 10⁵
As a duration
133,681 s = 1 day, 13 hours, 8 minutes, 1 second
In other bases
ternary (3) 20210101011
quaternary (4) 200220301
quinary (5) 13234211
senary (6) 2510521
septenary (7) 1064512
nonary (9) 223334
undecimal (11) 91489
duodecimal (12) 65441
tridecimal (13) 48b02
tetradecimal (14) 36a09
pentadecimal (15) 29921

As an angle

133,681° = 371 × 360° + 121°
121° ≈ 2.112 rad
Compass bearing: ESE (east-southeast)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹
Egyptian hieroglyphic
𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺
Greek (Milesian)
͵ρλγχπαʹ
Mayan (base 20)
𝋰·𝋮·𝋤·𝋡
Chinese
一十三萬三千六百八十一
Chinese (financial)
壹拾參萬參仟陸佰捌拾壹
In other modern scripts
Eastern Arabic ١٣٣٦٨١ Devanagari १३३६८१ Bengali ১৩৩৬৮১ Tamil ௧௩௩௬௮௧ Thai ๑๓๓๖๘๑ Tibetan ༡༣༣༦༨༡ Khmer ១៣៣៦៨១ Lao ໑໓໓໖໘໑ Burmese ၁၃၃၆၈၁

Also seen as

Unicode codepoint
𠨱
CJK Unified Ideograph-20A31
U+20A31
Other letter (Lo)

UTF-8 encoding: F0 A0 A8 B1 (4 bytes).

Hex color
#020A31
RGB(2, 10, 49)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.10.49.

Address
0.2.10.49
Class
reserved
IPv4-mapped IPv6
::ffff:0.2.10.49

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 133,681 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 133681 first appears in π at position 419,336 of the decimal expansion (the 419,336ordinal-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