101,242
101,242 is a composite number, even.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 10
- Digit product
- 0
- Digital root
- 1
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 242,101
- Recamán's sequence
- a(98,315) = 101,242
- Square (n²)
- 10,249,942,564
- Cube (n³)
- 1,037,724,685,064,488
- Divisor count
- 8
- σ(n) — sum of divisors
- 153,216
- φ(n) — Euler's totient
- 50,172
- Sum of prime factors
- 452
Primality
Prime factorization: 2 × 223 × 227
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√101,242 = [318; (5, 2, 1, 1, 4, 19, 15, 10, 28, 1, 4, 1, 3, 3, 2, 1, 105, 2, 1, 2, 1, 12, 1, 4, …)]
Representations
- In words
- one hundred one thousand two hundred forty-two
- Ordinal
- 101242nd
- Binary
- 11000101101111010
- Octal
- 305572
- Hexadecimal
- 0x18B7A
- Base64
- AYt6
- One's complement
- 4,294,866,053 (32-bit)
- Scientific notation
- 1.01242 × 10⁵
- As a duration
- 101,242 s = 1 day, 4 hours, 7 minutes, 22 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓆼𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵ρασμβʹ
- Mayan (base 20)
- 𝋬·𝋭·𝋢·𝋢
- Chinese
- 一十萬一千二百四十二
- Chinese (financial)
- 壹拾萬壹仟貳佰肆拾貳
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 101242, here are decompositions:
- 59 + 101183 = 101242
- 83 + 101159 = 101242
- 101 + 101141 = 101242
- 131 + 101111 = 101242
- 179 + 101063 = 101242
- 191 + 101051 = 101242
- 233 + 101009 = 101242
- 311 + 100931 = 101242
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 98 AD BA (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.1.139.122.
- Address
- 0.1.139.122
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.139.122
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 101,242 and was likely granted around 1870.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
This passes the ABA routing number checksum and matches the Federal Reserve numbering scheme.
Banks operate many routing numbers per state and division; an unmatched checksum-valid number can still be a real RTN at a smaller institution.
The digit sequence 101242 first appears in π at position 185,033 of the decimal expansion (the 185,033ordinal-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.