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68089264 = 244255579
BaseRepresentation
bin1000000111011…
…11010110110000
311202010021220121
410003233112300
5114412324024
610431220024
71454514655
oct403572660
9152107817
1068089264
1135486521
121a977614
131114cc09
149085c2c
155e9e8e4
hex40ef5b0

68089264 has 10 divisors (see below), whose sum is σ = 131922980. Its totient is φ = 34044624.

The previous prime is 68089261. The next prime is 68089271. The reversal of 68089264 is 46298086.

It is a happy number.

It is a super-2 number, since 2×680892642 = 9272295744123392, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 68089264.

It is not an unprimeable number, because it can be changed into a prime (68089261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2127774 + ... + 2127805.

It is an arithmetic number, because the mean of its divisors is an integer number (13192298).

Almost surely, 268089264 is an apocalyptic number.

It is an amenable number.

68089264 is a deficient number, since it is larger than the sum of its proper divisors (63833716).

68089264 is a wasteful number, since it uses less digits than its factorization.

68089264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4255587 (or 4255581 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 68089264 is about 8251.6219011780. The cubic root of 68089264 is about 408.3440325208.

The spelling of 68089264 in words is "sixty-eight million, eighty-nine thousand, two hundred sixty-four".

Divisors: 1 2 4 8 16 4255579 8511158 17022316 34044632 68089264