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68053579 = 1122327743
BaseRepresentation
bin1000000111001…
…10101001001011
311202001110221221
410003212221023
5114410203304
610430342511
71454305636
oct403465113
9152043857
1068053579
1135461730
121a95aa37
13111398b9
149076c1d
155e94054
hex40e6a4b

68053579 has 8 divisors (see below), whose sum is σ = 74575872. Its totient is φ = 61587240.

The previous prime is 68053553. The next prime is 68053589. The reversal of 68053579 is 97535086.

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

It is not a de Polignac number, because 68053579 - 25 = 68053547 is a prime.

It is a super-2 number, since 2×680535792 = 9262579229418482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68053549) 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, 11419 + ... + 16324.

It is an arithmetic number, because the mean of its divisors is an integer number (9321984).

Almost surely, 268053579 is an apocalyptic number.

68053579 is a deficient number, since it is larger than the sum of its proper divisors (6522293).

68053579 is a wasteful number, since it uses less digits than its factorization.

68053579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27977.

The product of its (nonzero) digits is 226800, while the sum is 43.

The square root of 68053579 is about 8249.4593156158. The cubic root of 68053579 is about 408.2726835184.

The spelling of 68053579 in words is "sixty-eight million, fifty-three thousand, five hundred seventy-nine".

Divisors: 1 11 223 2453 27743 305173 6186689 68053579