1,001,001
1,001,001 is a composite number, odd.
1,001,001 (one million one thousand one) is an odd 7-digit number. It is a composite number with 4 divisors, and factors as 3 × 333,667. Its digits read the same forwards and backwards, so it is a palindromic number. Written other ways, in hexadecimal, 0xF4629.
Interestingness
Properties
- Parity
- Odd
- Digit count
- 7
- Digit sum
- 3
- Digit product
- 0
- Digital root
- 3
- Palindrome
- Yes
- Bit width
- 20 bits
- Square (n²)
- 1,002,003,002,001
- Cube (n³)
- 1,003,006,007,006,003,001
- Divisor count
- 4
- σ(n) — sum of divisors
- 1,334,672
- φ(n) — Euler's totient
- 667,332
- Sum of prime factors
- 333,670
Primality
Prime factorization: 3 × 333667
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√1,001,001 = [1000; (1, 1, 666, 1, 1, 2000)]
Period length 6 — the block in parentheses repeats forever.
Representations
- In words
- one million one thousand one
- Ordinal
- 1001001st
- Binary
- 11110100011000101001
- Octal
- 3643051
- Hexadecimal
- 0xF4629
- Base64
- D0Yp
- One's complement
- 4,293,966,294 (32-bit)
- Scientific notation
- 1.001001 × 10⁶
- As a duration
- 1,001,001 s = 11 days, 14 hours, 3 minutes, 21 seconds
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹 𒌋𒌋𒁹
- Egyptian hieroglyphic
- 𓁨𓆼𓏺
- Chinese
- 一百萬一千零一
- Chinese (financial)
- 壹佰萬壹仟零壹
Also seen as
As an unsigned 32-bit integer, this is the IPv4 address 0.15.70.41.
- Address
- 0.15.70.41
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.15.70.41
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 1,001,001 and was likely granted around 1911.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 1001001 first appears in π at position 475,742 of the decimal expansion (the 475,742ordinal-suffix:nd 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
- Egyptian hieroglyphic numerals — Seven hieroglyphs for every power of ten, from a single stroke to a million.