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68214886 = 2191283631
BaseRepresentation
bin1000001000011…
…10000001100110
311202100200020021
410010032001212
5114430334021
610434025354
71455550135
oct404160146
9152320207
1068214886
1135561943
121aa1825a
131119514c
1490b991c
155ec6c41
hex410e066

68214886 has 16 divisors (see below), whose sum is σ = 103385088. Its totient is φ = 33755400.

The previous prime is 68214877. The next prime is 68214889. The reversal of 68214886 is 68841286.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68214889) 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, 107791 + ... + 108421.

It is an arithmetic number, because the mean of its divisors is an integer number (6461568).

Almost surely, 268214886 is an apocalyptic number.

68214886 is a deficient number, since it is larger than the sum of its proper divisors (35170202).

68214886 is a wasteful number, since it uses less digits than its factorization.

68214886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1107.

The product of its digits is 147456, while the sum is 43.

The square root of 68214886 is about 8259.2303515521. The cubic root of 68214886 is about 408.5950044380.

The spelling of 68214886 in words is "sixty-eight million, two hundred fourteen thousand, eight hundred eighty-six".

Divisors: 1 2 191 283 382 566 631 1262 54053 108106 120521 178573 241042 357146 34107443 68214886