106,661
106,661 is a prime, odd.
106,661 (one hundred six thousand six hundred sixty-one) is an odd 6-digit number. It is a prime number — divisible only by 1 and itself. Written other ways, in hexadecimal, 0x1A0A5.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 20
- Digit product
- 0
- Digital root
- 2
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 166,601
- Flips to (rotate 180°)
- 199,901
- Recamán's sequence
- a(86,021) = 106,661
- Square (n²)
- 11,376,568,921
- Cube (n³)
- 1,213,436,217,682,781
- Divisor count
- 2
- σ(n) — sum of divisors
- 106,662
- φ(n) — Euler's totient
- 106,660
Primality
106,661 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√106,661 = [326; (1, 1, 2, 3, 1, 1, 2, 1, 1, 14, 3, 1, 3, 1, 10, 3, 1, 1, 3, 1, 14, 2, 2, 4, …)]
Representations
- In words
- one hundred six thousand six hundred sixty-one
- Ordinal
- 106661st
- Binary
- 11010000010100101
- Octal
- 320245
- Hexadecimal
- 0x1A0A5
- Base64
- AaCl
- One's complement
- 4,294,860,634 (32-bit)
- Scientific notation
- 1.06661 × 10⁵
- As a duration
- 106,661 s = 1 day, 5 hours, 37 minutes, 41 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹
- Egyptian hieroglyphic
- 𓆐𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓏺
- Greek (Milesian)
- ͵ρϛχξαʹ
- Mayan (base 20)
- 𝋭·𝋦·𝋭·𝋡
- Chinese
- 十萬六千六百六十一
- Chinese (financial)
- 壹拾萬陸仟陸佰陸拾壹
Also seen as
As an unsigned 32-bit integer, this is the IPv4 address 0.1.160.165.
- Address
- 0.1.160.165
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.160.165
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 106,661 and was likely granted around 1870.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 106661 first appears in π at position 38,130 of the decimal expansion (the 38,130ordinal-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
- Prime numbers — The building blocks of arithmetic: what primes are, why they matter, and how we find them.
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.