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1313315321450 = 2521123437323741
BaseRepresentation
bin10011000111000111101…
…100010111011001101010
311122112220012110212101212
4103013013230113121222
5133004132210241300
62443155001113122
7163612115020466
oct23070754273152
94575805425355
101313315321450
11466a79296290
121926427887a2
1396aca8cc982
14477c9b554a6
1524267db0935
hex131c7b1766a

1313315321450 has 96 divisors (see below), whose sum is σ = 2781451654272. Its totient is φ = 456681632000.

The previous prime is 1313315321443. The next prime is 1313315321459. The reversal of 1313315321450 is 541235133131.

It is not an unprimeable number, because it can be changed into a prime (1313315321459) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 55306580 + ... + 55330320.

It is an arithmetic number, because the mean of its divisors is an integer number (28973454732).

Almost surely, 21313315321450 is an apocalyptic number.

1313315321450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1313315321450 is an abundant number, since it is smaller than the sum of its proper divisors (1468136332822).

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

1313315321450 is a wasteful number, since it uses less digits than its factorization.

1313315321450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28160 (or 28155 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 32.

The spelling of 1313315321450 in words is "one trillion, three hundred thirteen billion, three hundred fifteen million, three hundred twenty-one thousand, four hundred fifty".

Divisors: 1 2 5 10 11 22 23 25 46 50 55 110 115 230 253 275 506 550 575 1150 1265 2530 4373 6325 8746 12650 21865 23741 43730 47482 48103 96206 100579 109325 118705 201158 218650 237410 240515 261151 481030 502895 522302 546043 593525 1005790 1092086 1106369 1187050 1202575 1305755 2212738 2405150 2514475 2611510 2730215 5028950 5460430 5531845 6006473 6528775 11063690 12012946 13057550 13651075 27302150 27659225 30032365 55318450 60064730 103819393 150161825 207638786 300323650 519096965 1038193930 1142013323 2284026646 2387846039 2595484825 4775692078 5190969650 5710066615 11420133230 11939230195 23878460390 26266306429 28550333075 52532612858 57100666150 59696150975 119392301950 131331532145 262663064290 656657660725 1313315321450