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68706226 = 264153593
BaseRepresentation
bin1000001100001…
…01111110110010
311210021122020001
410012011332302
5120042044401
610452340214
71462664461
oct406057662
9153248201
1068706226
1135868006
121b01466a
1311307994
1491a69d8
156072601
hex4185fb2

68706226 has 8 divisors (see below), whose sum is σ = 103222044. Its totient is φ = 34298880.

The previous prime is 68706173. The next prime is 68706229. The reversal of 68706226 is 62260786.

It can be written as a sum of positive squares in 2 ways, for example, as 65626201 + 3080025 = 8101^2 + 1755^2 .

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 (68706229) 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, 25515 + ... + 28078.

Almost surely, 268706226 is an apocalyptic number.

68706226 is a deficient number, since it is larger than the sum of its proper divisors (34515818).

68706226 is a wasteful number, since it uses less digits than its factorization.

68706226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54236.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 68706226 is about 8288.9218840571. The cubic root of 68706226 is about 409.5736714606.

The spelling of 68706226 in words is "sixty-eight million, seven hundred six thousand, two hundred twenty-six".

Divisors: 1 2 641 1282 53593 107186 34353113 68706226