138,989
138,989 is a composite number, odd.
138,989 (one hundred thirty-eight thousand nine hundred eighty-nine) is an odd 6-digit number. It is a composite number with 4 divisors, and factors as 23 × 6,043. Written other ways, in hexadecimal, 0x21EED.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 38
- Digit product
- 15,552
- Digital root
- 2
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 989,831
- Recamán's sequence
- a(490,849) = 138,989
- Square (n²)
- 19,317,942,121
- Cube (n³)
- 2,684,981,457,455,669
- Divisor count
- 4
- σ(n) — sum of divisors
- 145,056
- φ(n) — Euler's totient
- 132,924
- Sum of prime factors
- 6,066
Primality
Prime factorization: 23 × 6043
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√138,989 = [372; (1, 4, 3, 17, 1, 6, 1, 9, 2, 1, 16, 3, 1, 2, 1, 1, 1, 2, 1, 8, 1, 23, 6, 2, …)]
Representations
- In words
- one hundred thirty-eight thousand nine hundred eighty-nine
- Ordinal
- 138989th
- Binary
- 100001111011101101
- Octal
- 417355
- Hexadecimal
- 0x21EED
- Base64
- Ah7t
- One's complement
- 4,294,828,306 (32-bit)
- Scientific notation
- 1.38989 × 10⁵
- As a duration
- 138,989 s = 1 day, 14 hours, 36 minutes, 29 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρληϡπθʹ
- Mayan (base 20)
- 𝋱·𝋧·𝋩·𝋩
- Chinese
- 一十三萬八千九百八十九
- Chinese (financial)
- 壹拾參萬捌仟玖佰捌拾玖
Also seen as
UTF-8 encoding: F0 A1 BB AD (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.30.237.
- Address
- 0.2.30.237
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.30.237
Unspecified address (0.0.0.0/8) — "this network" placeholder.
This number falls in the range of US utility patent numbers. If it's a patent, it would be issued as US 138,989 and was likely granted around 1872.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 138989 first appears in π at position 352,836 of the decimal expansion (the 352,836ordinal-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.