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68248288 = 252132759
BaseRepresentation
bin1000001000101…
…10001011100000
311202102101001101
410010112023200
5114432421123
610434444144
71456046413
oct404261340
9152371041
1068248288
1135584a49
121aa33654
13111a7404
1490c7b7a
155ed1aad
hex41162e0

68248288 has 12 divisors (see below), whose sum is σ = 134363880. Its totient is φ = 34124128.

The previous prime is 68248283. The next prime is 68248289. The reversal of 68248288 is 88284286.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68248283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1066348 + ... + 1066411.

It is an arithmetic number, because the mean of its divisors is an integer number (11196990).

Almost surely, 268248288 is an apocalyptic number.

It is an amenable number.

68248288 is a deficient number, since it is larger than the sum of its proper divisors (66115592).

68248288 is a wasteful number, since it uses less digits than its factorization.

68248288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2132769 (or 2132761 counting only the distinct ones).

The product of its digits is 393216, while the sum is 46.

The square root of 68248288 is about 8261.2522053258. The cubic root of 68248288 is about 408.6616842305.

The spelling of 68248288 in words is "sixty-eight million, two hundred forty-eight thousand, two hundred eighty-eight".

Divisors: 1 2 4 8 16 32 2132759 4265518 8531036 17062072 34124144 68248288