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139,013

139,013 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.).

139,013 (one hundred thirty-nine thousand thirteen) is an odd 6-digit number. It is a composite number with 6 divisors, and factors as 7² × 2,837. Written other ways, in hexadecimal, 0x21F05.

Arithmetic Number Cube-Free Deficient Number Evil Number Recamán's Sequence

Interestingness

Properties

Parity
Odd
Digit count
6
Digit sum
17
Digit product
0
Digital root
8
Palindrome
No
Bit width
18 bits
Reversed
310,931
Recamán's sequence
a(490,801) = 139,013
Square (n²)
19,324,614,169
Cube (n³)
2,686,372,589,475,197
Divisor count
6
σ(n) — sum of divisors
161,766
φ(n) — Euler's totient
119,112
Sum of prime factors
2,851

Primality

Prime factorization: 7 2 × 2837

Nearest primes: 138,977 (−36) · 139,021 (+8)

Divisors & multiples

All divisors (6)
1 · 7 · 49 · 2837 · 19859 · 139013
Aliquot sum (sum of proper divisors): 22,753
Factor pairs (a × b = 139,013)
1 × 139013
7 × 19859
49 × 2837
First multiples
139,013 · 278,026 (double) · 417,039 · 556,052 · 695,065 · 834,078 · 973,091 · 1,112,104 · 1,251,117 · 1,390,130

Sums & aliquot sequence

As a sum of two squares: 238² + 287²
As consecutive integers: 69,506 + 69,507 19,856 + 19,857 + … + 19,862 9,923 + 9,924 + … + 9,936 2,813 + 2,814 + … + 2,861
Aliquot sequence: 139,013 22,753 435 285 195 141 51 21 11 1 0 — terminates at zero

Continued fraction of √n

√139,013 = [372; (1, 5, 2, 3, 17, 1, 8, 1, 6, 2, 14, 1, 3, 32, 5, 1, 56, 1, 1, 8, 1, 14, 3, 10, …)]

Representations

In words
one hundred thirty-nine thousand thirteen
Ordinal
139013th
Binary
100001111100000101
Octal
417405
Hexadecimal
0x21F05
Base64
Ah8F
One's complement
4,294,828,282 (32-bit)
Scientific notation
1.39013 × 10⁵
As a duration
139,013 s = 1 day, 14 hours, 36 minutes, 53 seconds
In other bases
ternary (3) 21001200122
quaternary (4) 201330011
quinary (5) 13422023
senary (6) 2551325
septenary (7) 1116200
nonary (9) 231618
undecimal (11) 95496
duodecimal (12) 68545
tridecimal (13) 4b374
tetradecimal (14) 38937
pentadecimal (15) 2b2c8

As an angle

139,013° = 386 × 360° + 53°
53° ≈ 0.925 rad
Compass bearing: NE (northeast)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓎆𓏺𓏺𓏺
Greek (Milesian)
͵ρλθιγʹ
Mayan (base 20)
𝋱·𝋧·𝋪·𝋭
Chinese
一十三萬九千零一十三
Chinese (financial)
壹拾參萬玖仟零壹拾參
In other modern scripts
Eastern Arabic ١٣٩٠١٣ Devanagari १३९०१३ Bengali ১৩৯০১৩ Tamil ௧௩௯௦௧௩ Thai ๑๓๙๐๑๓ Tibetan ༡༣༩༠༡༣ Khmer ១៣៩០១៣ Lao ໑໓໙໐໑໓ Burmese ၁၃၉၀၁၃

Also seen as

Unicode codepoint
𡼅
CJK Unified Ideograph-21F05
U+21F05
Other letter (Lo)

UTF-8 encoding: F0 A1 BC 85 (4 bytes).

Hex color
#021F05
RGB(2, 31, 5)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.31.5.

Address
0.2.31.5
Class
reserved
IPv4-mapped IPv6
::ffff:0.2.31.5

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 139,013 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 139013 first appears in π at position 734,269 of the decimal expansion (the 734,269ordinal-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.