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51345060433660 = 2257463792117563
BaseRepresentation
bin10111010110010101101000…
…00101101000111011111100
320201210112120112122220211101
423223022310011220323330
523212214140432334120
6301111332314302444
713546362314442310
oct1353126405507374
9221715515586741
1051345060433660
11153a6355062aa4
125913024a27a24
132285a840ca9c6
14c97185473b40
155e090995e90a
hex2eb2b4168efc

51345060433660 has 48 divisors (see below), whose sum is σ = 123494296697856. Its totient is φ = 17565999054912.

The previous prime is 51345060433627. The next prime is 51345060433663. The reversal of 51345060433660 is 6633406054315.

It is a super-3 number, since 3×513450604336603 (a number of 42 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51345060433660.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51345060433663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 395993962 + ... + 396123601.

It is an arithmetic number, because the mean of its divisors is an integer number (2572797847872).

Almost surely, 251345060433660 is an apocalyptic number.

It is an amenable number.

51345060433660 is an abundant number, since it is smaller than the sum of its proper divisors (72149236264196).

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

51345060433660 is a wasteful number, since it uses less digits than its factorization.

51345060433660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792118042 (or 792118040 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 46.

Adding to 51345060433660 its reverse (6633406054315), we get a palindrome (57978466487975).

The spelling of 51345060433660 in words is "fifty-one trillion, three hundred forty-five billion, sixty million, four hundred thirty-three thousand, six hundred sixty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 463 926 1852 2315 3241 4630 6482 9260 12964 16205 32410 64820 792117563 1584235126 3168470252 3960587815 5544822941 7921175630 11089645882 15842351260 22179291764 27724114705 55448229410 110896458820 366750431669 733500863338 1467001726676 1833752158345 2567253021683 3667504316690 5134506043366 7335008633380 10269012086732 12836265108415 25672530216830 51345060433660