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68127565 = 5111238683
BaseRepresentation
bin1000000111110…
…00101101001101
311202012020110011
410003320231031
5114420040230
610432113221
71455034432
oct403705515
9152166404
1068127565
1135502280
121a995811
131116448c
149095b89
155eaae2a
hex40f8b4d

68127565 has 8 divisors (see below), whose sum is σ = 89185248. Its totient is φ = 49547280.

The previous prime is 68127547. The next prime is 68127593. The reversal of 68127565 is 56572186.

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

It is not a de Polignac number, because 68127565 - 25 = 68127533 is a prime.

It is a super-2 number, since 2×681275652 = 9282730225658450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 619287 + ... + 619396.

It is an arithmetic number, because the mean of its divisors is an integer number (11148156).

Almost surely, 268127565 is an apocalyptic number.

It is an amenable number.

68127565 is a deficient number, since it is larger than the sum of its proper divisors (21057683).

68127565 is a wasteful number, since it uses less digits than its factorization.

68127565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1238699.

The product of its digits is 100800, while the sum is 40.

The square root of 68127565 is about 8253.9423913667. The cubic root of 68127565 is about 408.4205842522.

The spelling of 68127565 in words is "sixty-eight million, one hundred twenty-seven thousand, five hundred sixty-five".

Divisors: 1 5 11 55 1238683 6193415 13625513 68127565