100,428
100,428 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 15
- Digit product
- 0
- Digital root
- 6
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 824,001
- Recamán's sequence
- a(99,235) = 100,428
- Square (n²)
- 10,085,783,184
- Cube (n³)
- 1,012,895,033,602,752
- Divisor count
- 12
- σ(n) — sum of divisors
- 234,360
- φ(n) — Euler's totient
- 33,472
- Sum of prime factors
- 8,376
Primality
Prime factorization: 2 2 × 3 × 8369
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- one hundred thousand four hundred twenty-eight
- Ordinal
- 100428th
- Binary
- 11000100001001100
- Octal
- 304114
- Hexadecimal
- 0x1884C
- Base64
- AYhM
- One's complement
- 4,294,866,867 (32-bit)
- Scientific notation
- 1.00428 × 10⁵
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρυκηʹ
- Mayan (base 20)
- 𝋬·𝋫·𝋡·𝋨
- Chinese
- 一十萬零四百二十八
- Chinese (financial)
- 壹拾萬零肆佰貳拾捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 100428, here are decompositions:
- 11 + 100417 = 100428
- 17 + 100411 = 100428
- 37 + 100391 = 100428
- 67 + 100361 = 100428
- 71 + 100357 = 100428
- 131 + 100297 = 100428
- 137 + 100291 = 100428
- 149 + 100279 = 100428
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 98 A1 8C (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.1.136.76.
- Address
- 0.1.136.76
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.136.76
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 100,428 and was likely granted around 1870.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 100428 first appears in π at position 157,158 of the decimal expansion (the 157,158ordinal-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.