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68775465 = 3511416821
BaseRepresentation
bin1000001100101…
…10111000101001
311210102011012110
410012112320221
5120101303330
610454032533
71463403363
oct406267051
9153364173
1068775465
1135905030
121b048749
1311330355
1491c3d33
156087db0
hex4196e29

68775465 has 16 divisors (see below), whose sum is σ = 120044736. Its totient is φ = 33345600.

The previous prime is 68775463. The next prime is 68775479. The reversal of 68775465 is 56457786.

It is not a de Polignac number, because 68775465 - 21 = 68775463 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68775463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 208246 + ... + 208575.

It is an arithmetic number, because the mean of its divisors is an integer number (7502796).

Almost surely, 268775465 is an apocalyptic number.

It is an amenable number.

68775465 is a deficient number, since it is larger than the sum of its proper divisors (51269271).

68775465 is a wasteful number, since it uses less digits than its factorization.

68775465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416840.

The product of its digits is 1411200, while the sum is 48.

The square root of 68775465 is about 8293.0974309965. The cubic root of 68775465 is about 409.7112084898.

The spelling of 68775465 in words is "sixty-eight million, seven hundred seventy-five thousand, four hundred sixty-five".

Divisors: 1 3 5 11 15 33 55 165 416821 1250463 2084105 4585031 6252315 13755093 22925155 68775465