138,501
138,501 is a composite number, odd.
138,501 (one hundred thirty-eight thousand five hundred one) is an odd 6-digit number. It is a composite number with 12 divisors, and factors as 3² × 11 × 1,399. Written other ways, in hexadecimal, 0x21D05.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 18
- Digit product
- 0
- Digital root
- 9
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 105,831
- Recamán's sequence
- a(491,825) = 138,501
- Square (n²)
- 19,182,527,001
- Cube (n³)
- 2,656,799,172,165,501
- Divisor count
- 12
- σ(n) — sum of divisors
- 218,400
- φ(n) — Euler's totient
- 83,880
- Sum of prime factors
- 1,416
Primality
Prime factorization: 3 2 × 11 × 1399
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√138,501 = [372; (6, 2, 1, 3, 2, 4, 1, 1, 2, 3, 4, 1, 10, 7, 2, 2, 1, 6, 1, 2, 1, 2, 1, 1, …)]
Representations
- In words
- one hundred thirty-eight thousand five hundred one
- Ordinal
- 138501st
- Binary
- 100001110100000101
- Octal
- 416405
- Hexadecimal
- 0x21D05
- Base64
- Ah0F
- One's complement
- 4,294,828,794 (32-bit)
- Scientific notation
- 1.38501 × 10⁵
- As a duration
- 138,501 s = 1 day, 14 hours, 28 minutes, 21 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓏺
- Greek (Milesian)
- ͵ρληφαʹ
- Mayan (base 20)
- 𝋱·𝋦·𝋥·𝋡
- Chinese
- 一十三萬八千五百零一
- Chinese (financial)
- 壹拾參萬捌仟伍佰零壹
Also seen as
UTF-8 encoding: F0 A1 B4 85 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.29.5.
- Address
- 0.2.29.5
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.29.5
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 138,501 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 138501 first appears in π at position 67,323 of the decimal expansion (the 67,323ordinal-suffix:rd 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°.