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68427827 = 135263679
BaseRepresentation
bin1000001010000…
…10000000110011
311202202111022222
410011002000303
5120004142302
610442351255
71460425016
oct405020063
9152674288
1068427827
1135697926
121aabb52b
131123b050
14913337d
156019da2
hex4142033

68427827 has 4 divisors (see below), whose sum is σ = 73691520. Its totient is φ = 63164136.

The previous prime is 68427809. The next prime is 68427833. The reversal of 68427827 is 72872486.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68427827 - 216 = 68362291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68427857) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2631827 + ... + 2631852.

It is an arithmetic number, because the mean of its divisors is an integer number (18422880).

Almost surely, 268427827 is an apocalyptic number.

68427827 is a deficient number, since it is larger than the sum of its proper divisors (5263693).

68427827 is a wasteful number, since it uses less digits than its factorization.

68427827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5263692.

The product of its digits is 301056, while the sum is 44.

The square root of 68427827 is about 8272.1113991532. Note that the first 3 decimals coincide. The cubic root of 68427827 is about 409.0197223489.

The spelling of 68427827 in words is "sixty-eight million, four hundred twenty-seven thousand, eight hundred twenty-seven".

Divisors: 1 13 5263679 68427827