109,961
109,961 is a prime, odd.
109,961 (one hundred nine thousand nine 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, 0x1AD89.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 26
- Digit product
- 0
- Digital root
- 8
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 169,901
- Flips to (rotate 180°)
- 196,601
- Recamán's sequence
- a(249,374) = 109,961
- Square (n²)
- 12,091,421,521
- Cube (n³)
- 1,329,584,801,870,681
- Divisor count
- 2
- σ(n) — sum of divisors
- 109,962
- φ(n) — Euler's totient
- 109,960
Primality
109,961 is prime. It has exactly two divisors: 1 and itself.
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√109,961 = [331; (1, 1, 1, 1, 10, 3, 1, 2, 15, 16, 1, 1, 16, 15, 2, 1, 3, 10, 1, 1, 1, 1, 662)]
Period length 23 — the block in parentheses repeats forever.
Representations
- In words
- one hundred nine thousand nine hundred sixty-one
- Ordinal
- 109961st
- Binary
- 11010110110001001
- Octal
- 326611
- Hexadecimal
- 0x1AD89
- Base64
- Aa2J
- One's complement
- 4,294,857,334 (32-bit)
- Scientific notation
- 1.09961 × 10⁵
- As a duration
- 109,961 s = 1 day, 6 hours, 32 minutes, 41 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋 𒌋𒌋𒌋𒁹𒁹 𒌋𒌋𒌋𒌋𒁹
- Egyptian hieroglyphic
- 𓆐𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓏺
- Greek (Milesian)
- ͵ρθϡξαʹ
- Mayan (base 20)
- 𝋭·𝋮·𝋲·𝋡
- Chinese
- 一十萬九千九百六十一
- Chinese (financial)
- 壹拾萬玖仟玖佰陸拾壹
Also seen as
As an unsigned 32-bit integer, this is the IPv4 address 0.1.173.137.
- Address
- 0.1.173.137
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.173.137
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 109,961 and was likely granted around 1871.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 109961 first appears in π at position 940,089 of the decimal expansion (the 940,089ordinal-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.