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138,109

138,109 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.).

138,109 (one hundred thirty-eight thousand one hundred nine) is an odd 6-digit number. It is a composite number with 4 divisors, and factors as 167 × 827. Written other ways, in hexadecimal, 0x21B7D.

Arithmetic Number Cube-Free Deficient Number Odious Number Pernicious Number Recamán's Sequence Self Number Semiprime Squarefree

Interestingness

Properties

Parity
Odd
Digit count
6
Digit sum
22
Digit product
0
Digital root
4
Palindrome
No
Bit width
18 bits
Reversed
901,831
Recamán's sequence
a(492,609) = 138,109
Square (n²)
19,074,095,881
Cube (n³)
2,634,304,308,029,029
Divisor count
4
σ(n) — sum of divisors
139,104
φ(n) — Euler's totient
137,116
Sum of prime factors
994

Primality

Prime factorization: 167 × 827

Nearest primes: 138,107 (−2) · 138,113 (+4)

Divisors & multiples

All divisors (4)
1 · 167 · 827 · 138109
Aliquot sum (sum of proper divisors): 995
Factor pairs (a × b = 138,109)
1 × 138109
167 × 827
First multiples
138,109 · 276,218 (double) · 414,327 · 552,436 · 690,545 · 828,654 · 966,763 · 1,104,872 · 1,242,981 · 1,381,090

Sums & aliquot sequence

As consecutive integers: 69,054 + 69,055 744 + 745 + … + 910 247 + 248 + … + 580
Aliquot sequence: 138,109 995 205 47 1 0 — terminates at zero

Continued fraction of √n

√138,109 = [371; (1, 1, 1, 2, 2, 1, 1, 1, 2, 1, 2, 1, 36, 2, 3, 6, 1, 1, 1, 16, 4, 7, 5, 2, …)]

Representations

In words
one hundred thirty-eight thousand one hundred nine
Ordinal
138109th
Binary
100001101101111101
Octal
415575
Hexadecimal
0x21B7D
Base64
Aht9
One's complement
4,294,829,186 (32-bit)
Scientific notation
1.38109 × 10⁵
As a duration
138,109 s = 1 day, 14 hours, 21 minutes, 49 seconds
In other bases
ternary (3) 21000110011
quaternary (4) 201231331
quinary (5) 13404414
senary (6) 2543221
septenary (7) 1113436
nonary (9) 230404
undecimal (11) 94844
duodecimal (12) 67b11
tridecimal (13) 4ab2a
tetradecimal (14) 3848d
pentadecimal (15) 2adc4

As an angle

138,109° = 383 × 360° + 229°
229° ≈ 3.997 rad
Compass bearing: SW (southwest)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ρληρθʹ
Mayan (base 20)
𝋱·𝋥·𝋥·𝋩
Chinese
一十三萬八千一百零九
Chinese (financial)
壹拾參萬捌仟壹佰零玖
In other modern scripts
Eastern Arabic ١٣٨١٠٩ Devanagari १३८१०९ Bengali ১৩৮১০৯ Tamil ௧௩௮௧௦௯ Thai ๑๓๘๑๐๙ Tibetan ༡༣༨༡༠༩ Khmer ១៣៨១០៩ Lao ໑໓໘໑໐໙ Burmese ၁၃၈၁၀၉

Also seen as

Unicode codepoint
𡭽
CJK Unified Ideograph-21B7D
U+21B7D
Other letter (Lo)

UTF-8 encoding: F0 A1 AD BD (4 bytes).

Hex color
#021B7D
RGB(2, 27, 125)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.27.125.

Address
0.2.27.125
Class
reserved
IPv4-mapped IPv6
::ffff:0.2.27.125

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 138,109 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 138109 first appears in π at position 519,659 of the decimal expansion (the 519,659ordinal-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