100,438
100,438 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 16
- Digit product
- 0
- Digital root
- 7
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 834,001
- Recamán's sequence
- a(99,215) = 100,438
- Square (n²)
- 10,087,791,844
- Cube (n³)
- 1,013,197,637,227,672
- Divisor count
- 8
- σ(n) — sum of divisors
- 162,288
- φ(n) — Euler's totient
- 46,344
- Sum of prime factors
- 3,878
Primality
Prime factorization: 2 × 13 × 3863
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- one hundred thousand four hundred thirty-eight
- Ordinal
- 100438th
- Binary
- 11000100001010110
- Octal
- 304126
- Hexadecimal
- 0x18856
- Base64
- AYhW
- One's complement
- 4,294,866,857 (32-bit)
- Scientific notation
- 1.00438 × 10⁵
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆐𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵ρυληʹ
- Mayan (base 20)
- 𝋬·𝋫·𝋡·𝋲
- Chinese
- 一十萬零四百三十八
- Chinese (financial)
- 壹拾萬零肆佰參拾捌
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 100438, here are decompositions:
- 47 + 100391 = 100438
- 59 + 100379 = 100438
- 167 + 100271 = 100438
- 269 + 100169 = 100438
- 389 + 100049 = 100438
- 419 + 100019 = 100438
- 449 + 99989 = 100438
- 467 + 99971 = 100438
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 98 A1 96 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.1.136.86.
- Address
- 0.1.136.86
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.136.86
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 100,438 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 100438 first appears in π at position 690,120 of the decimal expansion (the 690,120ordinal-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.