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68045578 = 235994771
BaseRepresentation
bin1000000111001…
…00101100001010
311202001001222121
410003210230022
5114404424303
610430241454
71454243416
oct403445412
9152031877
1068045578
1135456717
121a95628a
1311136073
149073d46
155e919bd
hex40e4b0a

68045578 has 8 divisors (see below), whose sum is σ = 102353760. Its totient is φ = 33927660.

The previous prime is 68045567. The next prime is 68045591. The reversal of 68045578 is 87554086.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46668 + ... + 48103.

It is an arithmetic number, because the mean of its divisors is an integer number (12794220).

Almost surely, 268045578 is an apocalyptic number.

68045578 is a deficient number, since it is larger than the sum of its proper divisors (34308182).

68045578 is a wasteful number, since it uses less digits than its factorization.

68045578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95132.

The product of its (nonzero) digits is 268800, while the sum is 43.

The square root of 68045578 is about 8248.9743604887. The cubic root of 68045578 is about 408.2566828034.

The spelling of 68045578 in words is "sixty-eight million, forty-five thousand, five hundred seventy-eight".

Divisors: 1 2 359 718 94771 189542 34022789 68045578