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68150571 = 343528299
BaseRepresentation
bin1000000111111…
…10010100101011
311202020102000020
410003332110223
5114421304241
610432411523
71455161466
oct403762453
9152212006
1068150571
1135518595
121a9a6ba3
1311171aa8
1490a02dd
155eb2b66
hex40fe52b

68150571 has 8 divisors (see below), whose sum is σ = 92980800. Its totient is φ = 44377032.

The previous prime is 68150543. The next prime is 68150573. The reversal of 68150571 is 17505186.

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

It is not a de Polignac number, because 68150571 - 26 = 68150507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68150573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 264021 + ... + 264278.

It is an arithmetic number, because the mean of its divisors is an integer number (11622600).

Almost surely, 268150571 is an apocalyptic number.

68150571 is a deficient number, since it is larger than the sum of its proper divisors (24830229).

68150571 is a wasteful number, since it uses less digits than its factorization.

68150571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528345.

The product of its (nonzero) digits is 8400, while the sum is 33.

The square root of 68150571 is about 8255.3359107913. The cubic root of 68150571 is about 408.4665522658.

The spelling of 68150571 in words is "sixty-eight million, one hundred fifty thousand, five hundred seventy-one".

Divisors: 1 3 43 129 528299 1584897 22716857 68150571