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68310470 = 256831047
BaseRepresentation
bin1000001001001…
…01010111000110
311202112112100102
410010211113012
5114441413340
610440044102
71456425614
oct404452706
9152475312
1068310470
1135617738
121aa63632
13111c97c7
1491026b4
155ee5215
hex41255c6

68310470 has 8 divisors (see below), whose sum is σ = 122958864. Its totient is φ = 27324184.

The previous prime is 68310433. The next prime is 68310497. The reversal of 68310470 is 7401386.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3415514 + ... + 3415533.

It is an arithmetic number, because the mean of its divisors is an integer number (15369858).

Almost surely, 268310470 is an apocalyptic number.

68310470 is a deficient number, since it is larger than the sum of its proper divisors (54648394).

68310470 is a wasteful number, since it uses less digits than its factorization.

68310470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6831054.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 68310470 is about 8265.0148215233. The cubic root of 68310470 is about 408.7857590751.

The spelling of 68310470 in words is "sixty-eight million, three hundred ten thousand, four hundred seventy".

Divisors: 1 2 5 10 6831047 13662094 34155235 68310470