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68888375 = 53551107
BaseRepresentation
bin1000001101100…
…10011100110111
311210121220002022
410012302130313
5120113412000
610500303355
71464353513
oct406623467
9153556068
1068888375
1135981946
121b0a1b5b
131136c86a
149213143
1560ab585
hex41b2737

68888375 has 8 divisors (see below), whose sum is σ = 85972848. Its totient is φ = 55110600.

The previous prime is 68888359. The next prime is 68888377. The reversal of 68888375 is 57388886.

It is not a de Polignac number, because 68888375 - 24 = 68888359 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 (68888377) 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, 275429 + ... + 275678.

It is an arithmetic number, because the mean of its divisors is an integer number (10746606).

Almost surely, 268888375 is an apocalyptic number.

68888375 is a deficient number, since it is larger than the sum of its proper divisors (17084473).

68888375 is an equidigital number, since it uses as much as digits as its factorization.

68888375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551122 (or 551112 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 53.

The square root of 68888375 is about 8299.9021078565. The cubic root of 68888375 is about 409.9352961546.

The spelling of 68888375 in words is "sixty-eight million, eight hundred eighty-eight thousand, three hundred seventy-five".

Divisors: 1 5 25 125 551107 2755535 13777675 68888375