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138,355

138,355 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.).

138,355 (one hundred thirty-eight thousand three hundred fifty-five) is an odd 6-digit number. It is a composite number with 16 divisors, and factors as 5 × 7 × 59 × 67. Written other ways, in hexadecimal, 0x21C73.

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

Interestingness

Properties

Parity
Odd
Digit count
6
Digit sum
25
Digit product
1,800
Digital root
7
Palindrome
No
Bit width
18 bits
Reversed
553,831
Recamán's sequence
a(492,117) = 138,355
Square (n²)
19,142,106,025
Cube (n³)
2,648,406,079,088,875
Divisor count
16
σ(n) — sum of divisors
195,840
φ(n) — Euler's totient
91,872
Sum of prime factors
138

Primality

Prime factorization: 5 × 7 × 59 × 67

Nearest primes: 138,349 (−6) · 138,371 (+16)

Divisors & multiples

All divisors (16)
1 · 5 · 7 · 35 · 59 · 67 · 295 · 335 · 413 · 469 · 2065 · 2345 · 3953 · 19765 · 27671 · 138355
Aliquot sum (sum of proper divisors): 57,485
Factor pairs (a × b = 138,355)
1 × 138355
5 × 27671
7 × 19765
35 × 3953
59 × 2345
67 × 2065
295 × 469
335 × 413
First multiples
138,355 · 276,710 (double) · 415,065 · 553,420 · 691,775 · 830,130 · 968,485 · 1,106,840 · 1,245,195 · 1,383,550

Sums & aliquot sequence

As consecutive integers: 69,177 + 69,178 27,669 + 27,670 + 27,671 + 27,672 + 27,673 19,762 + 19,763 + … + 19,768 13,831 + 13,832 + … + 13,840
Aliquot sequence: 138,355 57,485 11,503 1 0 — terminates at zero

Continued fraction of √n

√138,355 = [371; (1, 24, 1, 1, 1, 7, 1, 81, 1, 3, 2, 2, 2, 2, 6, 3, 2, 8, 1, 3, 23, 1, 2, 1, …)]

Representations

In words
one hundred thirty-eight thousand three hundred fifty-five
Ordinal
138355th
Binary
100001110001110011
Octal
416163
Hexadecimal
0x21C73
Base64
Ahxz
One's complement
4,294,828,940 (32-bit)
Scientific notation
1.38355 × 10⁵
As a duration
138,355 s = 1 day, 14 hours, 25 minutes, 55 seconds
In other bases
ternary (3) 21000210021
quaternary (4) 201301303
quinary (5) 13411410
senary (6) 2544311
septenary (7) 1114240
nonary (9) 230707
undecimal (11) 94a48
duodecimal (12) 68097
tridecimal (13) 4ac89
tetradecimal (14) 385c7
pentadecimal (15) 2aeda

As an angle

138,355° = 384 × 360° + 115°
115° ≈ 2.007 rad
Compass bearing: ESE (east-southeast)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ρλητνεʹ
Mayan (base 20)
𝋱·𝋥·𝋱·𝋯
Chinese
一十三萬八千三百五十五
Chinese (financial)
壹拾參萬捌仟參佰伍拾伍
In other modern scripts
Eastern Arabic ١٣٨٣٥٥ Devanagari १३८३५५ Bengali ১৩৮৩৫৫ Tamil ௧௩௮௩௫௫ Thai ๑๓๘๓๕๕ Tibetan ༡༣༨༣༥༥ Khmer ១៣៨៣៥៥ Lao ໑໓໘໓໕໕ Burmese ၁၃၈၃၅၅

Also seen as

Unicode codepoint
𡱳
CJK Unified Ideograph-21C73
U+21C73
Other letter (Lo)

UTF-8 encoding: F0 A1 B1 B3 (4 bytes).

Hex color
#021C73
RGB(2, 28, 115)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.28.115.

Address
0.2.28.115
Class
reserved
IPv4-mapped IPv6
::ffff:0.2.28.115

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 138,355 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 138355 first appears in π at position 669,305 of the decimal expansion (the 669,305ordinal-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