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2,470

2,470 is a composite number, even.

This number doesn't have a permanent NumberWiki page yet — what you see below is computed live. Pages get added to the permanent index when they're notable (years, primes, curated, etc.).

2,470 (two thousand four hundred seventy) is an even 4-digit number. It is a composite number with 16 divisors, and factors as 2 × 5 × 13 × 19. Its proper divisors sum to 2,570, more than the number itself, making it an abundant number. Written other ways, in Roman numerals it is MMCDLXX and in binary, 100110100110.

Abundant Number Arithmetic Number Cube-Free Evil Number Harshad / Niven Recamán's Sequence Self Number Semiperfect Number Square Pyramidal Squarefree

Interestingness

Properties

Parity
Even
Digit count
4
Digit sum
13
Digit product
0
Digital root
4
Palindrome
No
Bit width
12 bits
Reversed
742
Recamán's sequence
a(2,999) = 2,470
Square (n²)
6,100,900
Cube (n³)
15,069,223,000
Divisor count
16
σ(n) — sum of divisors
5,040
φ(n) — Euler's totient
864
Sum of prime factors
39

Primality

Prime factorization: 2 × 5 × 13 × 19

Nearest primes: 2,467 (−3) · 2,473 (+3)

Divisors & multiples

All divisors (16)
1 · 2 · 5 · 10 · 13 · 19 · 26 · 38 · 65 · 95 · 130 · 190 · 247 · 494 · 1235 (half) · 2470
Aliquot sum (sum of proper divisors): 2,570
Factor pairs (a × b = 2,470)
1 × 2470
2 × 1235
5 × 494
10 × 247
13 × 190
19 × 130
26 × 95
38 × 65
First multiples
2,470 · 4,940 (double) · 7,410 · 9,880 · 12,350 · 14,820 · 17,290 · 19,760 · 22,230 · 24,700

Sums & aliquot sequence

As consecutive integers: 616 + 617 + 618 + 619 492 + 493 + 494 + 495 + 496 184 + 185 + … + 196 121 + 122 + … + 139
Aliquot sequence: 2,470 2,570 2,074 1,274 1,120 1,904 2,560 3,578 1,792 2,296 2,744 3,256 3,584 4,600 6,560 9,316 8,072 — unresolved within range

Continued fraction of √n

√2,470 = [49; (1, 2, 3, 10, 1, 2, 1, 10, 3, 2, 1, 98)]

Period length 12 — the block in parentheses repeats forever.

Representations

In words
two thousand four hundred seventy
Ordinal
2470th
Roman numeral
MMCDLXX
Binary
100110100110
Octal
4646
Hexadecimal
0x9A6
Base64
CaY=
One's complement
63,065 (16-bit)
Scientific notation
2.47 × 10³
As a duration
2,470 s = 41 minutes, 10 seconds
In other bases
ternary (3) 10101111
quaternary (4) 212212
quinary (5) 34340
senary (6) 15234
septenary (7) 10126
nonary (9) 3344
undecimal (11) 1946
duodecimal (12) 151a
tridecimal (13) 1180
tetradecimal (14) c86
pentadecimal (15) aea
Palindromic in base 4, base 15

As an angle

2,470° = 6 × 360° + 310°
310° ≈ 5.411 rad
Compass bearing: NW (northwest)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒌋𒁹 𒌋
Egyptian hieroglyphic
𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆
Greek (Milesian)
͵βυοʹ
Mayan (base 20)
𝋦·𝋣·𝋪
Chinese
二千四百七十
Chinese (financial)
貳仟肆佰柒拾
In other modern scripts
Eastern Arabic ٢٤٧٠ Devanagari २४७० Bengali ২৪৭০ Tamil ௨௪௭௦ Thai ๒๔๗๐ Tibetan ༢༤༧༠ Khmer ២៤៧០ Lao ໒໔໗໐ Burmese ၂၄၇၀

Digit at this position in famous constants

π — Pi (π)
Digit 2,470 = 0
e — Euler's number (e)
Digit 2,470 = 6
φ — Golden ratio (φ)
Digit 2,470 = 4
√2 — Pythagoras's (√2)
Digit 2,470 = 0
ln 2 — Natural log of 2
Digit 2,470 = 6
γ — Euler-Mascheroni (γ)
Digit 2,470 = 9

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 2470, here are decompositions:

  • 3 + 2467 = 2470
  • 11 + 2459 = 2470
  • 23 + 2447 = 2470
  • 29 + 2441 = 2470
  • 47 + 2423 = 2470
  • 53 + 2417 = 2470
  • 59 + 2411 = 2470
  • 71 + 2399 = 2470

Showing the first eight; more decompositions exist.

Unicode codepoint
Bengali Letter Da
U+09A6
Other letter (Lo)

UTF-8 encoding: E0 A6 A6 (3 bytes).

Hex color
#0009A6
RGB(0, 9, 166)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.9.166.

Address
0.0.9.166
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.9.166

Unspecified address (0.0.0.0/8) — "this network" placeholder.

Musical pitch

Heard as a frequency, 2,470 Hz is closest to:

  • Concert pitch (A4 = 440 Hz): D♯7 (2489 Hz, -13¢)
  • Scientific pitch (C4 = 256 Hz): D♯7 (2435.5 Hz, +24¢)
  • Baroque pitch (A4 = 415 Hz): E7 (2487.2 Hz, -12¢)
Position in π

The digit sequence 2470 first appears in π at position 9,484 of the decimal expansion (the 9,484ordinal-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