142,409
142,409 is a composite number, odd.
142,409 (one hundred forty-two thousand four hundred nine) is an odd 6-digit number. It is a composite number with 4 divisors, and factors as 17 × 8,377. Written other ways, in hexadecimal, 0x22C49.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 6
- Digit sum
- 20
- Digit product
- 0
- Digital root
- 2
- Palindrome
- No
- Bit width
- 18 bits
- Reversed
- 904,241
- Recamán's sequence
- a(40,130) = 142,409
- Square (n²)
- 20,280,323,281
- Cube (n³)
- 2,888,100,558,123,929
- Divisor count
- 4
- σ(n) — sum of divisors
- 150,804
- φ(n) — Euler's totient
- 134,016
- Sum of prime factors
- 8,394
Primality
Prime factorization: 17 × 8377
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√142,409 = [377; (2, 1, 2, 3, 1, 2, 2, 1, 1, 2, 2, 1, 3, 2, 1, 2, 754)]
Period length 17 — the block in parentheses repeats forever.
Representations
- In words
- one hundred forty-two thousand four hundred nine
- Ordinal
- 142409th
- Binary
- 100010110001001001
- Octal
- 426111
- Hexadecimal
- 0x22C49
- Base64
- AixJ
- One's complement
- 4,294,824,886 (32-bit)
- Scientific notation
- 1.42409 × 10⁵
- As a duration
- 142,409 s = 1 day, 15 hours, 33 minutes, 29 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρμβυθʹ
- Mayan (base 20)
- 𝋱·𝋰·𝋠·𝋩
- Chinese
- 一十四萬二千四百零九
- Chinese (financial)
- 壹拾肆萬貳仟肆佰零玖
Also seen as
UTF-8 encoding: F0 A2 B1 89 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.2.44.73.
- Address
- 0.2.44.73
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.2.44.73
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 142,409 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 142409 first appears in π at position 226,484 of the decimal expansion (the 226,484ordinal-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
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.