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68448532 = 2217112133
BaseRepresentation
bin1000001010001…
…11000100010100
311202210112201211
410011013010110
5120010323112
610443031204
71460542255
oct405070424
9152715654
1068448532
1135701439
121ab0b504
13112475b9
14913ab2c
1560210a7
hex4147114

68448532 has 6 divisors (see below), whose sum is σ = 119784938. Its totient is φ = 34224264.

The previous prime is 68448521. The next prime is 68448539. The reversal of 68448532 is 23584486.

It can be written as a sum of positive squares in only one way, i.e., 67667076 + 781456 = 8226^2 + 884^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68448539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8556063 + ... + 8556070.

Almost surely, 268448532 is an apocalyptic number.

It is an amenable number.

68448532 is a deficient number, since it is larger than the sum of its proper divisors (51336406).

68448532 is a wasteful number, since it uses less digits than its factorization.

68448532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17112137 (or 17112135 counting only the distinct ones).

The product of its digits is 184320, while the sum is 40.

The square root of 68448532 is about 8273.3627987657. The cubic root of 68448532 is about 409.0609721333.

It can be divided in two parts, 6844 and 8532, that added together give a square (15376 = 1242).

The spelling of 68448532 in words is "sixty-eight million, four hundred forty-eight thousand, five hundred thirty-two".

Divisors: 1 2 4 17112133 34224266 68448532