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68214771 = 332526473
BaseRepresentation
bin1000001000011…
…01111111110011
311202100200002000
410010031333303
5114430333041
610434025043
71455546612
oct404157763
9152320060
1068214771
1135561849
121aa18183
1311195091
1490b9879
155ec6bb6
hex410dff3

68214771 has 8 divisors (see below), whose sum is σ = 101058960. Its totient is φ = 45476496.

The previous prime is 68214767. The next prime is 68214781. The reversal of 68214771 is 17741286.

It is not a de Polignac number, because 68214771 - 22 = 68214767 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68214701) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1263210 + ... + 1263263.

It is an arithmetic number, because the mean of its divisors is an integer number (12632370).

Almost surely, 268214771 is an apocalyptic number.

68214771 is a deficient number, since it is larger than the sum of its proper divisors (32844189).

68214771 is a wasteful number, since it uses less digits than its factorization.

68214771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2526482 (or 2526476 counting only the distinct ones).

The product of its digits is 18816, while the sum is 36.

The square root of 68214771 is about 8259.2233896414. The cubic root of 68214771 is about 408.5947748280.

The spelling of 68214771 in words is "sixty-eight million, two hundred fourteen thousand, seven hundred seventy-one".

Divisors: 1 3 9 27 2526473 7579419 22738257 68214771