Live analysis

31,617,628

31,617,628 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.).

31,617,628 (thirty-one million six hundred seventeen thousand six hundred twenty-eight) is an even 8-digit number. It is a composite number with 24 divisors, and factors as 2² × 7 × 59 × 19,139. Its proper divisors sum to 32,692,772, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1E2725C.

Abundant Number Arithmetic Number Cube-Free Odious Number Pernicious Number Semiperfect Number

Interestingness

★ ☆ ☆ ☆ ☆

3 notable facts · grade F

31,617,616 31,617,617 31,617,618 31,617,619 31,617,620 31,617,621 31,617,622 31,617,623 31,617,624 31,617,625 31,617,626 31,617,627 31,617,628 31,617,629 31,617,630 31,617,631 31,617,632 31,617,633 31,617,634 31,617,635 31,617,636 31,617,637 31,617,638 31,617,639 31,617,640

less more

Properties

Parity: Even
Digit count: 8
Digit sum: 34
Digit product: 12,096
Digital root: 7
Palindrome: No
Bit width: 25 bits
Reversed: 82,671,613
Square (n²): 999,674,400,346,384
Divisor count: 24
σ(n) — sum of divisors: 64,310,400
φ(n) — Euler's totient: 13,320,048
Sum of prime factors: 19,209

Primality

Prime factorization: 2 ² × 7 × 59 × 19139

Nearest primes: 31,617,587 (−41) · 31,617,629 (+1)

Divisors & multiples

All divisors (24)

1 · 2 · 4 · 7 · 14 · 28 · 59 · 118 · 236 · 413 · 826 · 1652 · 19139 · 38278 · 76556 · 133973 · 267946 · 535892 · 1129201 · 2258402 · 4516804 · 7904407 · 15808814 (half) · 31617628

Aliquot sum (sum of proper divisors): 32,692,772

Factor pairs (a × b = 31,617,628)

1 × 31617628

2 × 15808814

4 × 7904407

7 × 4516804

14 × 2258402

28 × 1129201

59 × 535892

118 × 267946

236 × 133973

413 × 76556

826 × 38278

1652 × 19139

First multiples

31,617,628 · 63,235,256 (double) · 94,852,884 · 126,470,512 · 158,088,140 · 189,705,768 · 221,323,396 · 252,941,024 · 284,558,652 · 316,176,280

Sums & aliquot sequence

As consecutive integers: 4,516,801 + 4,516,802 + … + 4,516,807 3,952,200 + 3,952,201 + … + 3,952,207 564,573 + 564,574 + … + 564,628 535,863 + 535,864 + … + 535,921

Aliquot sequence: 31,617,628 → 32,692,772 → 32,692,828 → 33,768,196 → 40,473,468 → 81,550,980 → 206,212,860 → 508,662,756 → 1,168,649,244 → 2,207,449,300 → 3,267,026,700 → 7,535,948,532 → 12,935,624,268 — keeps growing

Continued fraction of √n

√31,617,628 = [5622; (1, 21, 2, 4, 4, 1, 1, 2, 1, 2, 1, 14, 1, 2, 3, 1, 1, 7, 3, 4, 2, 7, 2, 1, …)]

Representations

In words: thirty-one million six hundred seventeen thousand six hundred twenty-eight
Ordinal: 31617628th
Binary: 1111000100111001001011100
Octal: 170471134
Hexadecimal: 0x1E2725C
Base64: AeJyXA==
One's complement: 4,263,349,667 (32-bit)
Scientific notation: 3.1617628 × 10⁷
As a duration: 31,617,628 s = 1 year, 22 hours, 40 minutes, 28 seconds

In other bases

ternary (3) 2012111100020021

quaternary (4) 1320213021130

quinary (5) 31043231003

senary (6) 3045401524

septenary (7) 532513450

nonary (9) 65440207

undecimal (11) 16935879

duodecimal (12) a7092a4

tridecimal (13) 6720373

tetradecimal (14) 42b0660

pentadecimal (15) 2b982bd

As an angle

31,617,628° = 87,826 × 360° + 268°

268° ≈ 4.677 rad

Compass bearing: W (west)

Why does a circle have 360 degrees? →

Historical numeral systems

Chinese: 三千一百六十一萬七千六百二十八
Chinese (financial): 參仟壹佰陸拾壹萬柒仟陸佰貳拾捌

In other modern scripts

Eastern Arabic ٣١٦١٧٦٢٨ Devanagari ३१६१७६२८ Bengali ৩১৬১৭৬২৮ Tamil ௩௧௬௧௭௬௨௮ Thai ๓๑๖๑๗๖๒๘ Tibetan ༣༡༦༡༧༦༢༨ Khmer ៣១៦១៧៦២៨ Lao ໓໑໖໑໗໖໒໘ Burmese ၃၁၆၁၇၆၂၈

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 31617628, here are decompositions:

41 + 31617587 = 31617628
131 + 31617497 = 31617628
167 + 31617461 = 31617628
179 + 31617449 = 31617628
197 + 31617431 = 31617628
257 + 31617371 = 31617628
347 + 31617281 = 31617628
359 + 31617269 = 31617628

Showing the first eight; more decompositions exist.

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 1.226.114.92.

Address: 1.226.114.92
Class: public
IPv4-mapped IPv6: ::ffff:1.226.114.92

Public, routable address (assignable to a host on the internet).