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68573707 = 167410621
BaseRepresentation
bin1000001011001…
…01101000001011
311210000220102221
410011211220023
5120023324312
610445434511
71461603226
oct405455013
9153026387
1068573707
1135787494
121ab6ba37
131128c577
1491705bd
156048207
hex4165a0b

68573707 has 4 divisors (see below), whose sum is σ = 68984496. Its totient is φ = 68162920.

The previous prime is 68573693. The next prime is 68573723. The reversal of 68573707 is 70737586.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70737586 = 235368793.

It is a cyclic number.

It is not a de Polignac number, because 68573707 - 27 = 68573579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68573737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205144 + ... + 205477.

It is an arithmetic number, because the mean of its divisors is an integer number (17246124).

Almost surely, 268573707 is an apocalyptic number.

68573707 is a deficient number, since it is larger than the sum of its proper divisors (410789).

68573707 is a wasteful number, since it uses less digits than its factorization.

68573707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410788.

The product of its (nonzero) digits is 246960, while the sum is 43.

The square root of 68573707 is about 8280.9242841606. The cubic root of 68573707 is about 409.3101765316.

The spelling of 68573707 in words is "sixty-eight million, five hundred seventy-three thousand, seven hundred seven".

Divisors: 1 167 410621 68573707