number.wiki
Live analysis

137,749

137,749 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.).

137,749 (one hundred thirty-seven thousand seven hundred forty-nine) is an odd 6-digit number. It is a composite number with 4 divisors, and factors as 139 × 991. Written other ways, in hexadecimal, 0x21A15.

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

Interestingness

Properties

Parity
Odd
Digit count
6
Digit sum
31
Digit product
5,292
Digital root
4
Palindrome
No
Bit width
18 bits
Reversed
947,731
Recamán's sequence
a(493,329) = 137,749
Square (n²)
18,974,787,001
Cube (n³)
2,613,757,934,600,749
Divisor count
4
σ(n) — sum of divisors
138,880
φ(n) — Euler's totient
136,620
Sum of prime factors
1,130

Primality

Prime factorization: 139 × 991

Nearest primes: 137,743 (−6) · 137,771 (+22)

Divisors & multiples

All divisors (4)
1 · 139 · 991 · 137749
Aliquot sum (sum of proper divisors): 1,131
Factor pairs (a × b = 137,749)
1 × 137749
139 × 991
First multiples
137,749 · 275,498 (double) · 413,247 · 550,996 · 688,745 · 826,494 · 964,243 · 1,101,992 · 1,239,741 · 1,377,490

Sums & aliquot sequence

As consecutive integers: 68,874 + 68,875 922 + 923 + … + 1,060 357 + 358 + … + 634
Aliquot sequence: 137,749 1,131 549 257 1 0 — terminates at zero

Continued fraction of √n

√137,749 = [371; (6, 1, 6, 1, 3, 1, 7, 1, 2, 1, 4, 5, 1, 3, 2, 4, 1, 2, 10, 1, 1, 3, 1, 1, …)]

Representations

In words
one hundred thirty-seven thousand seven hundred forty-nine
Ordinal
137749th
Binary
100001101000010101
Octal
415025
Hexadecimal
0x21A15
Base64
AhoV
One's complement
4,294,829,546 (32-bit)
Scientific notation
1.37749 × 10⁵
As a duration
137,749 s = 1 day, 14 hours, 15 minutes, 49 seconds
In other bases
ternary (3) 20222221211
quaternary (4) 201220111
quinary (5) 13401444
senary (6) 2541421
septenary (7) 1112413
nonary (9) 228854
undecimal (11) 94547
duodecimal (12) 67871
tridecimal (13) 4a911
tetradecimal (14) 382b3
pentadecimal (15) 2ac34

As an angle

137,749° = 382 × 360° + 229°
229° ≈ 3.997 rad
Compass bearing: SW (southwest)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ρλζψμθʹ
Mayan (base 20)
𝋱·𝋤·𝋧·𝋩
Chinese
一十三萬七千七百四十九
Chinese (financial)
壹拾參萬柒仟柒佰肆拾玖
In other modern scripts
Eastern Arabic ١٣٧٧٤٩ Devanagari १३७७४९ Bengali ১৩৭৭৪৯ Tamil ௧௩௭௭௪௯ Thai ๑๓๗๗๔๙ Tibetan ༡༣༧༧༤༩ Khmer ១៣៧៧៤៩ Lao ໑໓໗໗໔໙ Burmese ၁၃၇၇၄၉

Also seen as

Unicode codepoint
𡨕
CJK Unified Ideograph-21A15
U+21A15
Other letter (Lo)

UTF-8 encoding: F0 A1 A8 95 (4 bytes).

Hex color
#021A15
RGB(2, 26, 21)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.26.21.

Address
0.2.26.21
Class
reserved
IPv4-mapped IPv6
::ffff:0.2.26.21

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 137,749 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 137749 first appears in π at position 224,717 of the decimal expansion (the 224,717ordinal-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