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68332833823387 = 7191801638944651
BaseRepresentation
bin11111000100101111110100…
…10010010101101010011011
322221221112222200022222211111
433202113322102111222123
532424031120424322022
6401155400454241151
720251612215656050
oct1742277222255233
9287845880288744
1068332833823387
111a855879295071
1277b743b9561b7
132c189b27a68c3
1412c3480a6d027
157d77619bc477
hex3e25fa495a9b

68332833823387 has 32 divisors (see below), whose sum is σ = 82265273049600. Its totient is φ = 55447584480000.

The previous prime is 68332833823381. The next prime is 68332833823399. The reversal of 68332833823387 is 78332833823386.

It is not a de Polignac number, because 68332833823387 - 243 = 59536740801179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68332833823381) 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, 1530354012 + ... + 1530398662.

It is an arithmetic number, because the mean of its divisors is an integer number (2570789782800).

Almost surely, 268332833823387 is an apocalyptic number.

68332833823387 is a deficient number, since it is larger than the sum of its proper divisors (13932439226213).

68332833823387 is a wasteful number, since it uses less digits than its factorization.

68332833823387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52867.

The product of its digits is 501645312, while the sum is 67.

Subtracting 68332833823387 from its reverse (78332833823386), we obtain a palindrome (9999999999999).

The spelling of 68332833823387 in words is "sixty-eight trillion, three hundred thirty-two billion, eight hundred thirty-three million, eight hundred twenty-three thousand, three hundred eighty-seven".

Divisors: 1 7 19 133 1801 6389 12607 34219 44651 44723 121391 239533 312557 848369 849737 5938583 11506589 80416451 80546123 218625191 285275239 562915157 1527912569 1530376337 1996926673 5420229541 10695387983 37941606787 513780705439 3596464938073 9761833403341 68332833823387