4,172
4,172 is a composite number, even.
4,172 (four thousand one hundred seventy-two) is an even 4-digit number. It is a composite number with 12 divisors, and factors as 2² × 7 × 149. Its proper divisors sum to 4,228, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x104C.
Interestingness
Properties
- Parity
- Even
- Digit count
- 4
- Digit sum
- 14
- Digit product
- 56
- Digital root
- 5
- Palindrome
- No
- Bit width
- 13 bits
- Reversed
- 2,714
- Recamán's sequence
- a(28,732) = 4,172
- Square (n²)
- 17,405,584
- Cube (n³)
- 72,616,096,448
- Divisor count
- 12
- σ(n) — sum of divisors
- 8,400
- φ(n) — Euler's totient
- 1,776
- Sum of prime factors
- 160
Primality
Prime factorization: 2 2 × 7 × 149
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√4,172 = [64; (1, 1, 2, 4, 18, 4, 2, 1, 1, 128)]
Period length 10 — the block in parentheses repeats forever.
Representations
- In words
- four thousand one hundred seventy-two
- Ordinal
- 4172nd
- Binary
- 1000001001100
- Octal
- 10114
- Hexadecimal
- 0x104C
- Base64
- EEw=
- One's complement
- 61,363 (16-bit)
- Scientific notation
- 4.172 × 10³
- As a duration
- 4,172 s = 1 hour, 9 minutes, 32 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓆼𓆼𓆼𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺
- Greek (Milesian)
- ͵δροβʹ
- Mayan (base 20)
- 𝋪·𝋨·𝋬
- Chinese
- 四千一百七十二
- Chinese (financial)
- 肆仟壹佰柒拾貳
Digit at this position in famous constants
- π — Pi (π)
- Digit 4,172 = 6
- e — Euler's number (e)
- Digit 4,172 = 4
- φ — Golden ratio (φ)
- Digit 4,172 = 7
- √2 — Pythagoras's (√2)
- Digit 4,172 = 8
- ln 2 — Natural log of 2
- Digit 4,172 = 2
- γ — Euler-Mascheroni (γ)
- Digit 4,172 = 3
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 4172, here are decompositions:
- 13 + 4159 = 4172
- 19 + 4153 = 4172
- 43 + 4129 = 4172
- 61 + 4111 = 4172
- 73 + 4099 = 4172
- 79 + 4093 = 4172
- 151 + 4021 = 4172
- 229 + 3943 = 4172
Showing the first eight; more decompositions exist.
UTF-8 encoding: E1 81 8C (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.16.76.
- Address
- 0.0.16.76
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.16.76
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Heard as a frequency, 4,172 Hz is closest to:
- Concert pitch (A4 = 440 Hz): C8 (4186 Hz, -6¢)
- Scientific pitch (C4 = 256 Hz): C8 (4096 Hz, +32¢)
- Baroque pitch (A4 = 415 Hz): C♯8 (4182.9 Hz, -5¢)
The digit sequence 4172 first appears in π at position 1,418 of the decimal expansion (the 1,418ordinal-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.
Related reading
- Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.