100,420
100,420 is a composite number, even.
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 7
- Digit product
- 0
- Digital root
- 7
- Palindrome
- No
- Bit width
- 17 bits
- Reversed
- 24,001
- Recamán's sequence
- a(99,251) = 100,420
- Square (n²)
- 10,084,176,400
- Cube (n³)
- 1,012,652,994,088,000
- Divisor count
- 12
- σ(n) — sum of divisors
- 210,924
- φ(n) — Euler's totient
- 40,160
- Sum of prime factors
- 5,030
Primality
Prime factorization: 2 2 × 5 × 5021
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- one hundred thousand four hundred twenty
- Ordinal
- 100420th
- Binary
- 11000100001000100
- Octal
- 304104
- Hexadecimal
- 0x18844
- Base64
- AYhE
- One's complement
- 4,294,866,875 (32-bit)
- Scientific notation
- 1.0042 × 10⁵
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓍢𓍢𓍢𓍢𓎆𓎆
- Greek (Milesian)
- ͵ρυκʹ
- Mayan (base 20)
- 𝋬·𝋫·𝋡·𝋠
- Chinese
- 一十萬零四百二十
- Chinese (financial)
- 壹拾萬零肆佰貳拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 100420, here are decompositions:
- 3 + 100417 = 100420
- 17 + 100403 = 100420
- 29 + 100391 = 100420
- 41 + 100379 = 100420
- 59 + 100361 = 100420
- 107 + 100313 = 100420
- 149 + 100271 = 100420
- 227 + 100193 = 100420
Showing the first eight; more decompositions exist.
UTF-8 encoding: F0 98 A1 84 (4 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.1.136.68.
- Address
- 0.1.136.68
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.1.136.68
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 100,420 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 100420 first appears in π at position 438,694 of the decimal expansion (the 438,694ordinal-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.