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42520353330 = 23571315575221
BaseRepresentation
bin100111100110011010…
…010001101000110010
311001202022112202022010
4213212122101220302
51144040202301310
631311130423350
73033460016460
oct474632215062
9131668482263
1042520353330
111703a6a3884
1282a7b91b56
134018289bb0
1420b51d9830
15118cdd3320
hex9e6691a32

42520353330 has 64 divisors (see below), whose sum is σ = 125598590208. Its totient is φ = 8971326720.

The previous prime is 42520353319. The next prime is 42520353347. The reversal of 42520353330 is 3335302524.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7784881 + ... + 7790340.

It is an arithmetic number, because the mean of its divisors is an integer number (1962477972).

Almost surely, 242520353330 is an apocalyptic number.

42520353330 is an abundant number, since it is smaller than the sum of its proper divisors (83078236878).

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

42520353330 is a wasteful number, since it uses less digits than its factorization.

42520353330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15575251.

The product of its (nonzero) digits is 32400, while the sum is 30.

Adding to 42520353330 its reverse (3335302524), we get a palindrome (45855655854).

The spelling of 42520353330 in words is "forty-two billion, five hundred twenty million, three hundred fifty-three thousand, three hundred thirty".

Divisors: 1 2 3 5 6 7 10 13 14 15 21 26 30 35 39 42 65 70 78 91 105 130 182 195 210 273 390 455 546 910 1365 2730 15575221 31150442 46725663 77876105 93451326 109026547 155752210 202477873 218053094 233628315 327079641 404955746 467256630 545132735 607433619 654159282 1012389365 1090265470 1214867238 1417345111 1635398205 2024778730 2834690222 3037168095 3270796410 4252035333 6074336190 7086725555 8504070666 14173451110 21260176665 42520353330