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68212573 = 1113477011
BaseRepresentation
bin1000001000011…
…01011101011101
311202100120001121
410010031131131
5114430300243
610434010541
71455540322
oct404153535
9152316047
1068212573
1135560130
121aa16a51
1311194090
1490b8b49
155ec61ed
hex410d75d

68212573 has 8 divisors (see below), whose sum is σ = 80138016. Its totient is φ = 57241200.

The previous prime is 68212559. The next prime is 68212583. The reversal of 68212573 is 37521286.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 68212573 - 217 = 68081501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68212523) 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 7 ways as a sum of consecutive naturals, for example, 238363 + ... + 238648.

It is an arithmetic number, because the mean of its divisors is an integer number (10017252).

Almost surely, 268212573 is an apocalyptic number.

It is an amenable number.

68212573 is a deficient number, since it is larger than the sum of its proper divisors (11925443).

68212573 is a wasteful number, since it uses less digits than its factorization.

68212573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477035.

The product of its digits is 20160, while the sum is 34.

The square root of 68212573 is about 8259.0903252114. The cubic root of 68212573 is about 408.5903862332.

The spelling of 68212573 in words is "sixty-eight million, two hundred twelve thousand, five hundred seventy-three".

Divisors: 1 11 13 143 477011 5247121 6201143 68212573