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68285345 = 517839679
BaseRepresentation
bin1000001000111…
…11001110100001
311202111020212212
410010133032201
5114440112340
610435331505
71456262432
oct404371641
9152436785
1068285345
11355aa877
121aa50b95
13111bb23b
1490d7489
155edca65
hex411f3a1

68285345 has 16 divisors (see below), whose sum is σ = 87816960. Its totient is φ = 50790144.

The previous prime is 68285323. The next prime is 68285351. The reversal of 68285345 is 54358286.

It is a cyclic number.

It is not a de Polignac number, because 68285345 - 212 = 68281249 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2216 + ... + 11894.

It is an arithmetic number, because the mean of its divisors is an integer number (5488560).

Almost surely, 268285345 is an apocalyptic number.

It is an amenable number.

68285345 is a deficient number, since it is larger than the sum of its proper divisors (19531615).

68285345 is a wasteful number, since it uses less digits than its factorization.

68285345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9784.

The product of its digits is 230400, while the sum is 41.

The square root of 68285345 is about 8263.4947207583. The cubic root of 68285345 is about 408.7356349791.

The spelling of 68285345 in words is "sixty-eight million, two hundred eighty-five thousand, three hundred forty-five".

Divisors: 1 5 17 83 85 415 1411 7055 9679 48395 164543 803357 822715 4016785 13657069 68285345