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138,827

138,827 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.).

138,827 (one hundred thirty-eight thousand eight hundred twenty-seven) is an odd 6-digit number. It is a composite number with 8 divisors, and factors as 13 × 59 × 181. Written other ways, in hexadecimal, 0x21E4B.

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

Interestingness

Properties

Parity
Odd
Digit count
6
Digit sum
29
Digit product
2,688
Digital root
2
Palindrome
No
Bit width
18 bits
Reversed
728,831
Recamán's sequence
a(491,173) = 138,827
Square (n²)
19,272,935,929
Cube (n³)
2,675,603,876,215,283
Divisor count
8
σ(n) — sum of divisors
152,880
φ(n) — Euler's totient
125,280
Sum of prime factors
253

Primality

Prime factorization: 13 × 59 × 181

Nearest primes: 138,821 (−6) · 138,829 (+2)

Divisors & multiples

All divisors (8)
1 · 13 · 59 · 181 · 767 · 2353 · 10679 · 138827
Aliquot sum (sum of proper divisors): 14,053
Factor pairs (a × b = 138,827)
1 × 138827
13 × 10679
59 × 2353
181 × 767
First multiples
138,827 · 277,654 (double) · 416,481 · 555,308 · 694,135 · 832,962 · 971,789 · 1,110,616 · 1,249,443 · 1,388,270

Sums & aliquot sequence

As consecutive integers: 69,413 + 69,414 10,673 + 10,674 + … + 10,685 5,327 + 5,328 + … + 5,352 2,324 + 2,325 + … + 2,382
Aliquot sequence: 138,827 14,053 2,075 529 24 36 55 17 1 0 — terminates at zero

Continued fraction of √n

√138,827 = [372; (1, 1, 2, 7, 1, 1, 8, 1, 1, 3, 1, 24, 1, 11, 17, 4, 17, 11, 1, 24, 1, 3, 1, 1, …)]

Period length 32 — the block in parentheses repeats forever.

Representations

In words
one hundred thirty-eight thousand eight hundred twenty-seven
Ordinal
138827th
Binary
100001111001001011
Octal
417113
Hexadecimal
0x21E4B
Base64
Ah5L
One's complement
4,294,828,468 (32-bit)
Scientific notation
1.38827 × 10⁵
As a duration
138,827 s = 1 day, 14 hours, 33 minutes, 47 seconds
In other bases
ternary (3) 21001102202
quaternary (4) 201321023
quinary (5) 13420302
senary (6) 2550415
septenary (7) 1115513
nonary (9) 231382
undecimal (11) 95337
duodecimal (12) 6840b
tridecimal (13) 4b260
tetradecimal (14) 38843
pentadecimal (15) 2b202

As an angle

138,827° = 385 × 360° + 227°
227° ≈ 3.962 rad
Compass bearing: SW (southwest)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ρληωκζʹ
Mayan (base 20)
𝋱·𝋧·𝋡·𝋧
Chinese
一十三萬八千八百二十七
Chinese (financial)
壹拾參萬捌仟捌佰貳拾柒
In other modern scripts
Eastern Arabic ١٣٨٨٢٧ Devanagari १३८८२७ Bengali ১৩৮৮২৭ Tamil ௧௩௮௮௨௭ Thai ๑๓๘๘๒๗ Tibetan ༡༣༨༨༢༧ Khmer ១៣៨៨២៧ Lao ໑໓໘໘໒໗ Burmese ၁၃၈၈၂၇

Also seen as

Unicode codepoint
𡹋
CJK Unified Ideograph-21E4B
U+21E4B
Other letter (Lo)

UTF-8 encoding: F0 A1 B9 8B (4 bytes).

Hex color
#021E4B
RGB(2, 30, 75)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.30.75.

Address
0.2.30.75
Class
reserved
IPv4-mapped IPv6
::ffff:0.2.30.75

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 138,827 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 138827 first appears in π at position 350,916 of the decimal expansion (the 350,916ordinal-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.