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68084225 = 5211247579
BaseRepresentation
bin1000000111011…
…10001000000001
311202010000222222
410003232020001
5114412143400
610431140425
71454464166
oct403561001
9152100888
1068084225
1135482760
121a974715
131114a831
14908406d
155e9d185
hex40ee201

68084225 has 12 divisors (see below), whose sum is σ = 92099760. Its totient is φ = 49515600.

The previous prime is 68084221. The next prime is 68084251. The reversal of 68084225 is 52248086.

It is not a de Polignac number, because 68084225 - 22 = 68084221 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68084221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 123515 + ... + 124064.

It is an arithmetic number, because the mean of its divisors is an integer number (7674980).

Almost surely, 268084225 is an apocalyptic number.

It is an amenable number.

68084225 is a deficient number, since it is larger than the sum of its proper divisors (24015535).

68084225 is a wasteful number, since it uses less digits than its factorization.

68084225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247600 (or 247595 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 68084225 is about 8251.3165616161. The cubic root of 68084225 is about 408.3339589976. Note that the first 3 decimals are identical.

The spelling of 68084225 in words is "sixty-eight million, eighty-four thousand, two hundred twenty-five".

Divisors: 1 5 11 25 55 275 247579 1237895 2723369 6189475 13616845 68084225