138,225
138,225 is a composite number, odd.
138,225 (one hundred thirty-eight thousand two hundred twenty-five) is an odd 6-digit number. It is a composite number with 24 divisors, and factors as 3 × 5² × 19 × 97. Written other ways, in hexadecimal, 0x21BF1.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 21
- Digit product
- 480
- Digital root
- 3
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 522,831
- Recamán's sequence
- a(492,377) = 138,225
- Square (n²)
- 19,106,150,625
- Cube (n³)
- 2,640,947,670,140,625
- Divisor count
- 24
- σ(n) — sum of divisors
- 243,040
- φ(n) — Euler's totient
- 69,120
- Sum of prime factors
- 129
Primality
Prime factorization: 3 × 5 2 × 19 × 97
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√138,225 = [371; (1, 3, 1, 2, 9, 1, 1, 3, 1, 6, 1, 28, 1, 6, 1, 3, 1, 1, 9, 2, 1, 3, 1, 742)]
Period length 24 — the block in parentheses repeats forever.
Representations
- In words
- one hundred thirty-eight thousand two hundred twenty-five
- Ordinal
- 138225th
- Binary
- 100001101111110001
- Octal
- 415761
- Hexadecimal
- 0x21BF1
- Base64
- Ahvx
- One's complement
- 4,294,829,070 (32-bit)
- Scientific notation
- 1.38225 × 10⁵
- As a duration
- 138,225 s = 1 day, 14 hours, 23 minutes, 45 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρλησκεʹ
- Mayan (base 20)
- 𝋱·𝋥·𝋫·𝋥
- Chinese
- 一十三萬八千二百二十五
- Chinese (financial)
- 壹拾參萬捌仟貳佰貳拾伍
Also seen as
UTF-8 encoding: F0 A1 AF B1 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.27.241.
- Address
- 0.2.27.241
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.27.241
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 138,225 and was likely granted around 1872.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
Related reading
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.