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68229011 = 523130457
BaseRepresentation
bin1000001000100…
…01011110010011
311202101101121102
410010101132103
5114431312021
610434215015
71455636254
oct404213623
9152341542
1068229011
1135571514
121aa2446b
131119b6c6
1490c0b2b
155ecb00b
hex4111793

68229011 has 4 divisors (see below), whose sum is σ = 68359992. Its totient is φ = 68098032.

The previous prime is 68228969. The next prime is 68229013. The reversal of 68229011 is 11092286.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-68229011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68229013) 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, 64706 + ... + 65751.

It is an arithmetic number, because the mean of its divisors is an integer number (17089998).

Almost surely, 268229011 is an apocalyptic number.

68229011 is a deficient number, since it is larger than the sum of its proper divisors (130981).

68229011 is a wasteful number, since it uses less digits than its factorization.

68229011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130980.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 68229011 is about 8260.0854111807. The cubic root of 68229011 is about 408.6232045688.

The spelling of 68229011 in words is "sixty-eight million, two hundred twenty-nine thousand, eleven".

Divisors: 1 523 130457 68229011