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68580865 = 567204719
BaseRepresentation
bin1000001011001…
…11011000000001
311210001021021001
410011213120001
5120024041430
610445532001
71461633133
oct405473001
9153037231
1068580865
1135791901
121ab74001
13112928c2
149173053
15604a3ca
hex4167601

68580865 has 8 divisors (see below), whose sum is σ = 83525760. Its totient is φ = 54045552.

The previous prime is 68580859. The next prime is 68580877. The reversal of 68580865 is 56808586.

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 68580865 - 23 = 68580857 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102025 + ... + 102694.

It is an arithmetic number, because the mean of its divisors is an integer number (10440720).

Almost surely, 268580865 is an apocalyptic number.

It is an amenable number.

68580865 is a deficient number, since it is larger than the sum of its proper divisors (14944895).

68580865 is a wasteful number, since it uses less digits than its factorization.

68580865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204791.

The product of its (nonzero) digits is 460800, while the sum is 46.

The square root of 68580865 is about 8281.3564710137. The cubic root of 68580865 is about 409.3244178515.

The spelling of 68580865 in words is "sixty-eight million, five hundred eighty thousand, eight hundred sixty-five".

Divisors: 1 5 67 335 204719 1023595 13716173 68580865