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68893467012447 = 37211371151506243
BaseRepresentation
bin11111010101000100000101…
…01000001110110101011111
3100000221011002011120211220220
433222202002220032311133
533012222310023344242
6402305115525212423
720340250223312400
oct1752420250166537
9300834064524826
1068893467012447
111aa51612096970
127888022861113
132c5981a5cab2c
14130266688b9a7
157e7125729bec
hex3ea882a0ed5f

68893467012447 has 48 divisors (see below), whose sum is σ = 119719801176192. Its totient is φ = 34821548758080.

The previous prime is 68893467012421. The next prime is 68893467012463. The reversal of 68893467012447 is 74421076439886.

It is not a de Polignac number, because 68893467012447 - 211 = 68893467010399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68893467012497) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 575693293 + ... + 575812950.

It is an arithmetic number, because the mean of its divisors is an integer number (2494162524504).

Almost surely, 268893467012447 is an apocalyptic number.

68893467012447 is a deficient number, since it is larger than the sum of its proper divisors (50826334163745).

68893467012447 is a wasteful number, since it uses less digits than its factorization.

68893467012447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1151506308 (or 1151506301 counting only the distinct ones).

The product of its (nonzero) digits is 390168576, while the sum is 69.

The spelling of 68893467012447 in words is "sixty-eight trillion, eight hundred ninety-three billion, four hundred sixty-seven million, twelve thousand, four hundred forty-seven".

Divisors: 1 3 7 11 21 33 37 49 77 111 147 231 259 407 539 777 1221 1617 1813 2849 5439 8547 19943 59829 1151506243 3454518729 8060543701 12666568673 24181631103 37999706019 42605730991 56423805907 88665980711 127817192973 169271417721 265997942133 298240116937 468663040901 620661864977 894720350811 1405989122703 1861985594931 2087680818559 3280641286307 6263042455677 9841923858921 22964489004149 68893467012447