1,024,420
1,024,420 is a composite number, even.
1,024,420 (one million twenty-four thousand four hundred twenty) is an even 7-digit number. It is a composite number with 48 divisors, and factors as 2² × 5 × 17 × 23 × 131. Its proper divisors sum to 1,370,588, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xFA1A4.
Interestingness
Properties
- Parity
- Even
- Digit count
- 7
- Digit sum
- 13
- Digit product
- 0
- Digital root
- 4
- Palindrome
- No
- Bit width
- 20 bits
- Reversed
- 244,201
- Square (n²)
- 1,049,436,336,400
- Cube (n³)
- 1,075,063,571,734,888,000
- Divisor count
- 48
- σ(n) — sum of divisors
- 2,395,008
- φ(n) — Euler's totient
- 366,080
- Sum of prime factors
- 180
Primality
Prime factorization: 2 2 × 5 × 17 × 23 × 131
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√1,024,420 = [1012; (7, 2, 1, 224, 4, 4, 1, 2, 3, 24, 1, 2, 3, 1, 7, 3, 2, 1, 1, 2, 5, 3, 6, 31, …)]
Representations
- In words
- one million twenty-four thousand four hundred twenty
- Ordinal
- 1024420th
- Binary
- 11111010000110100100
- Octal
- 3720644
- Hexadecimal
- 0xFA1A4
- Base64
- D6Gk
- One's complement
- 4,293,942,875 (32-bit)
- Scientific notation
- 1.02442 × 10⁶
- As a duration
- 1,024,420 s = 11 days, 20 hours, 33 minutes, 40 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓁨𓂍𓂍𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆
- Chinese
- 一百零二萬四千四百二十
- Chinese (financial)
- 壹佰零貳萬肆仟肆佰貳拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1024420, here are decompositions:
- 29 + 1024391 = 1024420
- 41 + 1024379 = 1024420
- 83 + 1024337 = 1024420
- 101 + 1024319 = 1024420
- 107 + 1024313 = 1024420
- 113 + 1024307 = 1024420
- 269 + 1024151 = 1024420
- 317 + 1024103 = 1024420
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.15.161.164.
- Address
- 0.15.161.164
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.15.161.164
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Could be parsed as a date. Most likely interpretation: Thursday, January 2, 4420 (MDDYYYY (US, single-digit month)).
Other possible interpretations (3)
- 4420-02-01 (DMMYYYY (Euro, single-digit day))
- 4420-10-02 (MMDYYYY (US, single-digit day))
- 4420-02-10 (DDMYYYY (Euro, single-digit month))
This number falls in the range of US utility patent numbers. If it's a patent, it would be issued as US 1,024,420 and was likely granted around 1912.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 1024420 first appears in π at position 636,831 of the decimal expansion (the 636,831ordinal-suffix:st 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
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.