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139,125

139,125 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.).

139,125 (one hundred thirty-nine thousand one hundred twenty-five) is an odd 6-digit number. It is a composite number with 32 divisors, and factors as 3 × 5³ × 7 × 53. Written other ways, in hexadecimal, 0x21F75.

Arithmetic Number Deficient Number Gapful Number Harshad / Niven Odious Number Pernicious Number Recamán's Sequence

Interestingness

Properties

Parity
Odd
Digit count
6
Digit sum
21
Digit product
270
Digital root
3
Palindrome
No
Bit width
18 bits
Reversed
521,931
Recamán's sequence
a(490,577) = 139,125
Square (n²)
19,355,765,625
Cube (n³)
2,692,870,892,578,125
Divisor count
32
σ(n) — sum of divisors
269,568
φ(n) — Euler's totient
62,400
Sum of prime factors
78

Primality

Prime factorization: 3 × 5 3 × 7 × 53

Nearest primes: 139,123 (−2) · 139,133 (+8)

Divisors & multiples

All divisors (32)
1 · 3 · 5 · 7 · 15 · 21 · 25 · 35 · 53 · 75 · 105 · 125 · 159 · 175 · 265 · 371 · 375 · 525 · 795 · 875 · 1113 · 1325 · 1855 · 2625 · 3975 · 5565 · 6625 · 9275 · 19875 · 27825 · 46375 · 139125
Aliquot sum (sum of proper divisors): 130,443
Factor pairs (a × b = 139,125)
1 × 139125
3 × 46375
5 × 27825
7 × 19875
15 × 9275
21 × 6625
25 × 5565
35 × 3975
53 × 2625
75 × 1855
105 × 1325
125 × 1113
159 × 875
175 × 795
265 × 525
371 × 375
First multiples
139,125 · 278,250 (double) · 417,375 · 556,500 · 695,625 · 834,750 · 973,875 · 1,113,000 · 1,252,125 · 1,391,250

Sums & aliquot sequence

As consecutive integers: 69,562 + 69,563 46,374 + 46,375 + 46,376 27,823 + 27,824 + 27,825 + 27,826 + 27,827 23,185 + 23,186 + 23,187 + 23,188 + 23,189 + 23,190
Aliquot sequence: 139,125 130,443 43,485 31,779 20,061 9,699 3,693 1,235 445 95 25 6 6 — reaches a perfect number

Continued fraction of √n

√139,125 = [372; (1, 185, 2, 185, 1, 744)]

Period length 6 — the block in parentheses repeats forever.

Representations

In words
one hundred thirty-nine thousand one hundred twenty-five
Ordinal
139125th
Binary
100001111101110101
Octal
417565
Hexadecimal
0x21F75
Base64
Ah91
One's complement
4,294,828,170 (32-bit)
Scientific notation
1.39125 × 10⁵
As a duration
139,125 s = 1 day, 14 hours, 38 minutes, 45 seconds
In other bases
ternary (3) 21001211210
quaternary (4) 201331311
quinary (5) 13423000
senary (6) 2552033
septenary (7) 1116420
nonary (9) 231753
undecimal (11) 95588
duodecimal (12) 68619
tridecimal (13) 4b42c
tetradecimal (14) 389b7
pentadecimal (15) 2b350

As an angle

139,125° = 386 × 360° + 165°
165° ≈ 2.88 rad
Compass bearing: SSE (south-southeast)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ρλθρκεʹ
Mayan (base 20)
𝋱·𝋧·𝋰·𝋥
Chinese
一十三萬九千一百二十五
Chinese (financial)
壹拾參萬玖仟壹佰貳拾伍
In other modern scripts
Eastern Arabic ١٣٩١٢٥ Devanagari १३९१२५ Bengali ১৩৯১২৫ Tamil ௧௩௯௧௨௫ Thai ๑๓๙๑๒๕ Tibetan ༡༣༩༡༢༥ Khmer ១៣៩១២៥ Lao ໑໓໙໑໒໕ Burmese ၁၃၉၁၂၅

Also seen as

Unicode codepoint
𡽵
CJK Unified Ideograph-21F75
U+21F75
Other letter (Lo)

UTF-8 encoding: F0 A1 BD B5 (4 bytes).

Hex color
#021F75
RGB(2, 31, 117)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.31.117.

Address
0.2.31.117
Class
reserved
IPv4-mapped IPv6
::ffff:0.2.31.117

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 139,125 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 139125 first appears in π at position 777,032 of the decimal expansion (the 777,032ordinal-suffix:nd 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°.