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68935465 = 529475417
BaseRepresentation
bin1000001101111…
…01111100101001
311210201021200101
410012331330221
5120121413330
610501305401
71464641014
oct406757451
9153637611
1068935465
1135a04265
121b105261
1311388121
14922637b
1560ba4ca
hex41bdf29

68935465 has 8 divisors (see below), whose sum is σ = 85575240. Its totient is φ = 53246592.

The previous prime is 68935463. The next prime is 68935481. The reversal of 68935465 is 56453986.

It can be written as a sum of positive squares in 4 ways, for example, as 1432809 + 67502656 = 1197^2 + 8216^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 68935465 - 21 = 68935463 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68935463) 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, 237564 + ... + 237853.

It is an arithmetic number, because the mean of its divisors is an integer number (10696905).

Almost surely, 268935465 is an apocalyptic number.

It is an amenable number.

68935465 is a deficient number, since it is larger than the sum of its proper divisors (16639775).

68935465 is a wasteful number, since it uses less digits than its factorization.

68935465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475451.

The product of its digits is 777600, while the sum is 46.

The square root of 68935465 is about 8302.7384036834. The cubic root of 68935465 is about 410.0286813170.

The spelling of 68935465 in words is "sixty-eight million, nine hundred thirty-five thousand, four hundred sixty-five".

Divisors: 1 5 29 145 475417 2377085 13787093 68935465