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51241432201542 = 232111371889015417
BaseRepresentation
bin10111010011010100100110…
…10111010011100101000110
320201102122002111212021210100
423221222103113103211012
523204014423120422132
6300551553341504530
713536033313135512
oct1351522327234506
9221378074767710
1051241432201542
1115366407686460
1258b6b23b72146
13227907aa04a6b
14c921545d5142
155dcd91e3837c
hex2e9a935d3946

51241432201542 has 48 divisors (see below), whose sum is σ = 122000171756112. Its totient is φ = 15414365794560.

The previous prime is 51241432201517. The next prime is 51241432201549. The reversal of 51241432201542 is 24510223414215.

51241432201542 is a `hidden beast` number, since 5 + 1 + 2 + 414 + 3 + 220 + 15 + 4 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 51241432201497 and 51241432201506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51241432201549) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 944480583 + ... + 944534834.

It is an arithmetic number, because the mean of its divisors is an integer number (2541670244919).

Almost surely, 251241432201542 is an apocalyptic number.

51241432201542 is an abundant number, since it is smaller than the sum of its proper divisors (70758739554570).

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

51241432201542 is a wasteful number, since it uses less digits than its factorization.

51241432201542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1889015573 (or 1889015570 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

Adding to 51241432201542 its reverse (24510223414215), we get a palindrome (75751655615757).

The spelling of 51241432201542 in words is "fifty-one trillion, two hundred forty-one billion, four hundred thirty-two million, two hundred one thousand, five hundred forty-two".

Divisors: 1 2 3 6 9 11 18 22 33 66 99 137 198 274 411 822 1233 1507 2466 3014 4521 9042 13563 27126 1889015417 3778030834 5667046251 11334092502 17001138753 20779169587 34002277506 41558339174 62337508761 124675017522 187012526283 258795112129 374025052566 517590224258 776385336387 1552770672774 2329156009161 2846746233419 4658312018322 5693492466838 8540238700257 17080477400514 25620716100771 51241432201542