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68280221704734 = 23213433673893347
BaseRepresentation
bin11111000011001101110100…
…10111000010001000011110
322221202112012001100110001100
433201212322113002020132
532422200343224022414
6401115300102053530
720245040355230034
oct1741467227021036
9287675161313040
1068280221704734
111a8355300aa676
1277a91b811a2a6
132c13a4980cc50
1412c0acd464554
157d61d2b51609
hex3e19ba5c221e

68280221704734 has 48 divisors (see below), whose sum is σ = 159688463315472. Its totient is φ = 20960778633984.

The previous prime is 68280221704727. The next prime is 68280221704787. The reversal of 68280221704734 is 43740712208286.

68280221704734 is a `hidden beast` number, since 6 + 8 + 2 + 80 + 2 + 21 + 70 + 473 + 4 = 666.

68280221704734 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 336845352 + ... + 337047995.

It is an arithmetic number, because the mean of its divisors is an integer number (3326842985739).

Almost surely, 268280221704734 is an apocalyptic number.

68280221704734 is an abundant number, since it is smaller than the sum of its proper divisors (91408241610738).

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

68280221704734 is a wasteful number, since it uses less digits than its factorization.

68280221704734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673893801 (or 673893798 counting only the distinct ones).

The product of its (nonzero) digits is 7225344, while the sum is 54.

The spelling of 68280221704734 in words is "sixty-eight trillion, two hundred eighty billion, two hundred twenty-one million, seven hundred four thousand, seven hundred thirty-four".

Divisors: 1 2 3 6 9 13 18 26 39 78 117 234 433 866 1299 2598 3897 5629 7794 11258 16887 33774 50661 101322 673893347 1347786694 2021680041 4043360082 6065040123 8760613511 12130080246 17521227022 26281840533 52563681066 78845521599 157691043198 291795819251 583591638502 875387457753 1750774915506 2626162373259 3793345650263 5252324746518 7586691300526 11380036950789 22760073901578 34140110852367 68280221704734