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51233021441442 = 2335371932488687
BaseRepresentation
bin10111010011000100111100…
…00010110011010110100010
320201101211101100112101222000
423221202132002303112202
523203400211442111232
6300544043010024430
713535315013640161
oct1351423602632642
9221354340471860
1051233021441442
1115362890a63955
1258b5377278116
13227833a353839
14c919975653d8
155dca4d85127c
hex2e989e0b35a2

51233021441442 has 64 divisors (see below), whose sum is σ = 116015467138560. Its totient is φ = 16753117410432.

The previous prime is 51233021441429. The next prime is 51233021441447. The reversal of 51233021441442 is 24414412033215.

51233021441442 is a `hidden beast` number, since 5 + 1 + 23 + 3 + 0 + 214 + 414 + 4 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 51233021441397 and 51233021441406.

It is not an unprimeable number, because it can be changed into a prime (51233021441447) 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, 19342023 + ... + 21830709.

It is an arithmetic number, because the mean of its divisors is an integer number (1812741674040).

Almost surely, 251233021441442 is an apocalyptic number.

51233021441442 is an abundant number, since it is smaller than the sum of its proper divisors (64782445697118).

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

51233021441442 is a wasteful number, since it uses less digits than its factorization.

51233021441442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2495944 (or 2495938 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 36.

Adding to 51233021441442 its reverse (24414412033215), we get a palindrome (75647433474657).

The spelling of 51233021441442 in words is "fifty-one trillion, two hundred thirty-three billion, twenty-one million, four hundred forty-one thousand, four hundred forty-two".

Divisors: 1 2 3 6 9 18 27 53 54 106 159 318 477 954 1431 2862 7193 14386 21579 43158 64737 129474 194211 381229 388422 762458 1143687 2287374 2488687 3431061 4977374 6862122 7466061 10293183 14932122 20586366 22398183 44796366 67194549 131900411 134389098 263800822 395701233 791402466 1187103699 2374207398 3561311097 7122622194 17901125591 35802251182 53703376773 107406753546 161110130319 322220260638 483330390957 948759656323 966660781914 1897519312646 2846278968969 5692557937938 8538836906907 17077673813814 25616510720721 51233021441442