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138,141

138,141 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.).

138,141 (one hundred thirty-eight thousand one hundred forty-one) is an odd 6-digit number. It is a composite number with 6 divisors, and factors as 3² × 15,349. Written other ways, in hexadecimal, 0x21B9D.

Cube-Free Deficient Number Evil Number Recamán's Sequence

Interestingness

Properties

Parity
Odd
Digit count
6
Digit sum
18
Digit product
96
Digital root
9
Palindrome
No
Bit width
18 bits
Reversed
141,831
Recamán's sequence
a(492,545) = 138,141
Square (n²)
19,082,935,881
Cube (n³)
2,636,135,845,537,221
Divisor count
6
σ(n) — sum of divisors
199,550
φ(n) — Euler's totient
92,088
Sum of prime factors
15,355

Primality

Prime factorization: 3 2 × 15349

Nearest primes: 138,139 (−2) · 138,143 (+2)

Divisors & multiples

All divisors (6)
1 · 3 · 9 · 15349 · 46047 · 138141
Aliquot sum (sum of proper divisors): 61,409
Factor pairs (a × b = 138,141)
1 × 138141
3 × 46047
9 × 15349
First multiples
138,141 · 276,282 (double) · 414,423 · 552,564 · 690,705 · 828,846 · 966,987 · 1,105,128 · 1,243,269 · 1,381,410

Sums & aliquot sequence

As a sum of two squares: 171² + 330²
As consecutive integers: 69,070 + 69,071 46,046 + 46,047 + 46,048 23,021 + 23,022 + 23,023 + 23,024 + 23,025 + 23,026 15,345 + 15,346 + … + 15,353
Aliquot sequence: 138,141 61,409 1 0 — terminates at zero

Continued fraction of √n

√138,141 = [371; (1, 2, 16, 1, 1, 3, 1, 1, 1, 1, 2, 10, 1, 2, 2, 7, 148, 1, 1, 6, 1, 2, 1, 1, …)]

Representations

In words
one hundred thirty-eight thousand one hundred forty-one
Ordinal
138141st
Binary
100001101110011101
Octal
415635
Hexadecimal
0x21B9D
Base64
Ahud
One's complement
4,294,829,154 (32-bit)
Scientific notation
1.38141 × 10⁵
As a duration
138,141 s = 1 day, 14 hours, 22 minutes, 21 seconds
In other bases
ternary (3) 21000111100
quaternary (4) 201232131
quinary (5) 13410031
senary (6) 2543313
septenary (7) 1113513
nonary (9) 230440
undecimal (11) 94873
duodecimal (12) 67b39
tridecimal (13) 4ab53
tetradecimal (14) 384b3
pentadecimal (15) 2ade6

As an angle

138,141° = 383 × 360° + 261°
261° ≈ 4.555 rad
Compass bearing: W (west)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹 𒌋𒌋𒁹
Egyptian hieroglyphic
𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓎆𓎆𓎆𓎆𓏺
Greek (Milesian)
͵ρληρμαʹ
Mayan (base 20)
𝋱·𝋥·𝋧·𝋡
Chinese
一十三萬八千一百四十一
Chinese (financial)
壹拾參萬捌仟壹佰肆拾壹
In other modern scripts
Eastern Arabic ١٣٨١٤١ Devanagari १३८१४१ Bengali ১৩৮১৪১ Tamil ௧௩௮௧௪௧ Thai ๑๓๘๑๔๑ Tibetan ༡༣༨༡༤༡ Khmer ១៣៨១៤១ Lao ໑໓໘໑໔໑ Burmese ၁၃၈၁၄၁

Also seen as

Unicode codepoint
𡮝
CJK Unified Ideograph-21B9D
U+21B9D
Other letter (Lo)

UTF-8 encoding: F0 A1 AE 9D (4 bytes).

Hex color
#021B9D
RGB(2, 27, 157)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.27.157.

Address
0.2.27.157
Class
reserved
IPv4-mapped IPv6
::ffff:0.2.27.157

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 138,141 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 138141 first appears in π at position 487,997 of the decimal expansion (the 487,997ordinal-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°.