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68865051 = 3132117377
BaseRepresentation
bin1000001101011…
…00110000011011
311210120201002110
410012230300123
5120112140201
610500003403
71464225513
oct406546033
9153521073
1068865051
1135966372
121b090563
1311362068
149208843
1560a46d6
hex41acc1b

68865051 has 8 divisors (see below), whose sum is σ = 91894864. Its totient is φ = 45872640.

The previous prime is 68865037. The next prime is 68865089. The reversal of 68865051 is 15056886.

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

It is not a de Polignac number, because 68865051 - 219 = 68340763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68865031) 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, 4726 + ... + 12651.

It is an arithmetic number, because the mean of its divisors is an integer number (11486858).

Almost surely, 268865051 is an apocalyptic number.

68865051 is a deficient number, since it is larger than the sum of its proper divisors (23029813).

68865051 is a wasteful number, since it uses less digits than its factorization.

68865051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18701.

The product of its (nonzero) digits is 57600, while the sum is 39.

The square root of 68865051 is about 8298.4969120920. The cubic root of 68865051 is about 409.8890260830.

The spelling of 68865051 in words is "sixty-eight million, eight hundred sixty-five thousand, fifty-one".

Divisors: 1 3 1321 3963 17377 52131 22955017 68865051