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2132531320520 = 235314383481867
BaseRepresentation
bin11111000010000100110…
…001011001011011001000
321112212102202220111112202
4133002010301121123020
5234414411004224040
64311401003055332
7310033054066436
oct37020461313310
97485382814482
102132531320520
11752446376547
122a5370511548
131261349b33a3
14753021ddd56
153a7131a7015
hex1f084c596c8

2132531320520 has 128 divisors (see below), whose sum is σ = 5129234288640. Its totient is φ = 796582321920.

The previous prime is 2132531320487. The next prime is 2132531320523. The reversal of 2132531320520 is 250231352312.

It is not an unprimeable number, because it can be changed into a prime (2132531320523) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4184627 + ... + 4666493.

It is an arithmetic number, because the mean of its divisors is an integer number (40072142880).

Almost surely, 22132531320520 is an apocalyptic number.

2132531320520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2132531320520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2564617144320).

2132531320520 is an abundant number, since it is smaller than the sum of its proper divisors (2996702968120).

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

2132531320520 is a wasteful number, since it uses less digits than its factorization.

2132531320520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482035 (or 482031 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 29.

Adding to 2132531320520 its reverse (250231352312), we get a palindrome (2382762672832).

The spelling of 2132531320520 in words is "two trillion, one hundred thirty-two billion, five hundred thirty-one million, three hundred twenty thousand, five hundred twenty".

Divisors: 1 2 4 5 8 10 20 31 40 43 62 83 86 124 155 166 172 215 248 310 332 344 415 430 620 664 830 860 1240 1333 1660 1720 2573 2666 3320 3569 5146 5332 6665 7138 10292 10664 12865 13330 14276 17845 20584 25730 26660 28552 35690 51460 53320 71380 102920 110639 142760 221278 442556 481867 553195 885112 963734 1106390 1927468 2212780 2409335 3854936 4425560 4818670 9637340 14937877 19274680 20720281 29875754 39994961 41440562 59751508 74689385 79989922 82881124 103601405 119503016 149378770 159979844 165762248 199974805 207202810 298757540 319959688 399949610 414405620 597515080 642328711 799899220 828811240 1239843791 1284657422 1599798440 1719783323 2479687582 2569314844 3211643555 3439566646 4959375164 5138629688 6199218955 6423287110 6879133292 8598916615 9918750328 12398437910 12846574220 13758266584 17197833230 24796875820 25693148440 34395666460 49593751640 53313283013 68791332920 106626566026 213253132052 266566415065 426506264104 533132830130 1066265660260 2132531320520