Live analysis

31,617,396

31,617,396 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.).

31,617,396 (thirty-one million six hundred seventeen thousand three hundred ninety-six) is an even 8-digit number. It is a composite number with 72 divisors, and factors as 2² × 3² × 31 × 41 × 691. Its proper divisors sum to 53,016,972, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1E27174.

Abundant Number Cube-Free Gapful Number Harshad / Niven Odious Number Pernicious Number Practical Number Self Number Weird Number

Interestingness

★ ★ ★ ★ ☆

6 notable facts · grade B

31,617,384 31,617,385 31,617,386 31,617,387 31,617,388 31,617,389 31,617,390 31,617,391 31,617,392 31,617,393 31,617,394 31,617,395 31,617,396 31,617,397 31,617,398 31,617,399 31,617,400 31,617,401 31,617,402 31,617,403 31,617,404 31,617,405 31,617,406 31,617,407 31,617,408

less more

Properties

Parity: Even
Digit count: 8
Digit sum: 36
Digit product: 20,412
Digital root: 9
Palindrome: No
Bit width: 25 bits
Reversed: 69,371,613
Square (n²): 999,659,729,820,816
Divisor count: 72
σ(n) — sum of divisors: 84,634,368
φ(n) — Euler's totient: 9,936,000
Sum of prime factors: 773

Primality

Prime factorization: 2 ² × 3 ² × 31 × 41 × 691

Nearest primes: 31,617,379 (−17) · 31,617,403 (+7)

Divisors & multiples

All divisors (72)

1 · 2 · 3 · 4 · 6 · 9 · 12 · 18 · 31 · 36 · 41 · 62 · 82 · 93 · 123 · 124 · 164 · 186 · 246 · 279 · 369 · 372 · 492 · 558 · 691 · 738 · 1116 · 1271 · 1382 · 1476 · 2073 · 2542 · 2764 · 3813 · 4146 · 5084 · 6219 · 7626 · 8292 · 11439 · 12438 · 15252 · 21421 · 22878 · 24876 · 28331 · 42842 · 45756 · 56662 · 64263 · 84993 · 85684 · 113324 · 128526 · 169986 · 192789 · 254979 · 257052 · 339972 · 385578 · 509958 · 771156 · 878261 · 1019916 · 1756522 · 2634783 · 3513044 · 5269566 · 7904349 · 10539132 · 15808698 (half) · 31617396

Aliquot sum (sum of proper divisors): 53,016,972

Factor pairs (a × b = 31,617,396)

1 × 31617396

2 × 15808698

3 × 10539132

4 × 7904349

6 × 5269566

9 × 3513044

12 × 2634783

18 × 1756522

31 × 1019916

36 × 878261

41 × 771156

62 × 509958

82 × 385578

93 × 339972

123 × 257052

124 × 254979

164 × 192789

186 × 169986

246 × 128526

279 × 113324

369 × 85684

372 × 84993

492 × 64263

558 × 56662

691 × 45756

738 × 42842

1116 × 28331

1271 × 24876

1382 × 22878

1476 × 21421

2073 × 15252

2542 × 12438

2764 × 11439

3813 × 8292

4146 × 7626

5084 × 6219

First multiples

31,617,396 · 63,234,792 (double) · 94,852,188 · 126,469,584 · 158,086,980 · 189,704,376 · 221,321,772 · 252,939,168 · 284,556,564 · 316,173,960

Sums & aliquot sequence

As consecutive integers: 10,539,131 + 10,539,132 + 10,539,133 3,952,171 + 3,952,172 + … + 3,952,178 3,513,040 + 3,513,041 + … + 3,513,048 1,317,380 + 1,317,381 + … + 1,317,403

Aliquot sequence: 31,617,396 → 53,016,972 → 70,689,324 → 94,252,460 → 103,901,860 → 114,543,836 → 104,130,844 → 86,021,300 → 109,112,044 → 81,834,040 → 102,292,640 → 139,374,100 → 168,785,864 → 177,132,856 → 155,948,144 → 173,669,896 → 156,822,344 — unresolved within range

Continued fraction of √n

√31,617,396 = [5622; (1, 14, 2, 1, 11, 1, 2, 27, 1, 3, 2, 1, 1, 4, 1, 2, 2, 1, 1, 1, 10, 4, 4, 8, …)]

Representations

In words: thirty-one million six hundred seventeen thousand three hundred ninety-six
Ordinal: 31617396th
Binary: 1111000100111000101110100
Octal: 170470564
Hexadecimal: 0x1E27174
Base64: AeJxdA==
One's complement: 4,263,349,899 (32-bit)
Scientific notation: 3.1617396 × 10⁷
As a duration: 31,617,396 s = 1 year, 22 hours, 36 minutes, 36 seconds

In other bases

ternary (3) 2012111022220200

quaternary (4) 1320213011310

quinary (5) 31043224041

senary (6) 3045400500

septenary (7) 532512666

nonary (9) 65438820

undecimal (11) 16935688

duodecimal (12) a709130

tridecimal (13) 6720225

tetradecimal (14) 42b0536

pentadecimal (15) 2b981b6

As an angle

31,617,396° = 87,826 × 360° + 36°

36° ≈ 0.628 rad

Compass bearing: NE (northeast)

Why does a circle have 360 degrees? →

Historical numeral systems

Chinese: 三千一百六十一萬七千三百九十六
Chinese (financial): 參仟壹佰陸拾壹萬柒仟參佰玖拾陸

In other modern scripts

Eastern Arabic ٣١٦١٧٣٩٦ Devanagari ३१६१७३९६ Bengali ৩১৬১৭৩৯৬ Tamil ௩௧௬௧௭௩௯௬ Thai ๓๑๖๑๗๓๙๖ Tibetan ༣༡༦༡༧༣༩༦ Khmer ៣១៦១៧៣៩៦ Lao ໓໑໖໑໗໓໙໖ Burmese ၃၁၆၁၇၃၉၆

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 31617396, here are decompositions:

17 + 31617379 = 31617396
23 + 31617373 = 31617396
67 + 31617329 = 31617396
103 + 31617293 = 31617396
113 + 31617283 = 31617396
127 + 31617269 = 31617396
157 + 31617239 = 31617396
197 + 31617199 = 31617396

Showing the first eight; more decompositions exist.

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 1.226.113.116.

Address: 1.226.113.116
Class: public
IPv4-mapped IPv6: ::ffff:1.226.113.116

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