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131449159380 = 223571128452199
BaseRepresentation
bin111101001101011111…
…0101111111011010100
3110120021220210011120110
41322122332233323110
54123201441100010
6140215323403020
712332301263550
oct1723276577324
9416256704513
10131449159380
1150824695010
1221586083470
13c51b1a5ba6
14650db36860
1536451b9120
hex1e9afafed4

131449159380 has 96 divisors (see below), whose sum is σ = 458877081600. Its totient is φ = 27314110080.

The previous prime is 131449159379. The next prime is 131449159397. The reversal of 131449159380 is 83951944131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14221480 + ... + 14230719.

It is an arithmetic number, because the mean of its divisors is an integer number (4779969600).

Almost surely, 2131449159380 is an apocalyptic number.

131449159380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131449159380 is an abundant number, since it is smaller than the sum of its proper divisors (327427922220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131449159380 is a wasteful number, since it uses less digits than its factorization.

131449159380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28452229 (or 28452227 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 48.

The spelling of 131449159380 in words is "one hundred thirty-one billion, four hundred forty-nine million, one hundred fifty-nine thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 7 10 11 12 14 15 20 21 22 28 30 33 35 42 44 55 60 66 70 77 84 105 110 132 140 154 165 210 220 231 308 330 385 420 462 660 770 924 1155 1540 2310 4620 28452199 56904398 85356597 113808796 142260995 170713194 199165393 284521990 312974189 341426388 398330786 426782985 569043980 597496179 625948378 796661572 853565970 938922567 995826965 1194992358 1251896756 1564870945 1707131940 1877845134 1991653930 2190819323 2389984716 2987480895 3129741890 3755690268 3983307860 4381638646 4694612835 5974961790 6259483780 6572457969 8763277292 9389225670 10954096615 11949923580 13144915938 18778451340 21908193230 26289831876 32862289845 43816386460 65724579690 131449159380