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68079375 = 3254721319
BaseRepresentation
bin1000000111011…
…00111100001111
311202002210100100
410003230330033
5114412020000
610431102143
71454444100
oct403547417
9152083310
1068079375
113547a051
121a971953
1311148570
1490823a7
155e9ba00
hex40ecf0f

68079375 has 180 divisors, whose sum is σ = 162041880. Its totient is φ = 27216000.

The previous prime is 68079331. The next prime is 68079377. The reversal of 68079375 is 57397086.

It is a happy number.

It is not a de Polignac number, because 68079375 - 27 = 68079247 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 68079375.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68079377) by changing a digit.

It is a polite number, since it can be written in 179 ways as a sum of consecutive naturals, for example, 3583116 + ... + 3583134.

Almost surely, 268079375 is an apocalyptic number.

68079375 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

68079375 is an abundant number, since it is smaller than the sum of its proper divisors (93962505).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68079375 is a wasteful number, since it uses less digits than its factorization.

68079375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72 (or 47 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 68079375 is about 8251.0226638884. The cubic root of 68079375 is about 408.3242628371.

The spelling of 68079375 in words is "sixty-eight million, seventy-nine thousand, three hundred seventy-five".