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68579061 = 322859687
BaseRepresentation
bin1000001011001…
…10111011110101
311210001011210020
410011212323311
5120024012221
610445515353
71461624645
oct405467365
9153034706
1068579061
1135790511
121ab72b59
1311291b35
149172525
156049ac6
hex4166ef5

68579061 has 4 divisors (see below), whose sum is σ = 91438752. Its totient is φ = 45719372.

The previous prime is 68579059. The next prime is 68579083. The reversal of 68579061 is 16097586.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68579061 - 21 = 68579059 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68579011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11429841 + ... + 11429846.

It is an arithmetic number, because the mean of its divisors is an integer number (22859688).

Almost surely, 268579061 is an apocalyptic number.

It is an amenable number.

68579061 is a deficient number, since it is larger than the sum of its proper divisors (22859691).

68579061 is a wasteful number, since it uses less digits than its factorization.

68579061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22859690.

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 68579061 is about 8281.2475509430. The cubic root of 68579061 is about 409.3208287662.

The spelling of 68579061 in words is "sixty-eight million, five hundred seventy-nine thousand, sixty-one".

Divisors: 1 3 22859687 68579061