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68216314 = 242181017
BaseRepresentation
bin1000001000011…
…10010111111010
311202100202012011
410010032113322
5114430410224
610434040134
71455554245
oct404162772
9152322164
1068216314
1135562a21
121aa1904a
13111959aa
1490ba25c
155ec7394
hex410e5fa

68216314 has 8 divisors (see below), whose sum is σ = 102568788. Its totient is φ = 34026720.

The previous prime is 68216311. The next prime is 68216329. The reversal of 68216314 is 41361286.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 68145025 + 71289 = 8255^2 + 267^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (68216311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39667 + ... + 41350.

Almost surely, 268216314 is an apocalyptic number.

68216314 is a deficient number, since it is larger than the sum of its proper divisors (34352474).

68216314 is a wasteful number, since it uses less digits than its factorization.

68216314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81440.

The product of its digits is 6912, while the sum is 31.

The square root of 68216314 is about 8259.3167998328. The cubic root of 68216314 is about 408.5978555732.

The spelling of 68216314 in words is "sixty-eight million, two hundred sixteen thousand, three hundred fourteen".

Divisors: 1 2 421 842 81017 162034 34108157 68216314