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68383732 = 2257729629
BaseRepresentation
bin1000001001101…
…11001111110100
311202200020211211
410010313033310
5120001234412
610441411204
71460152324
oct404671764
9152606754
1068383732
113566778a
121aa99b04
1311223c61
149121284
15600bca7
hex41373f4

68383732 has 12 divisors (see below), whose sum is σ = 119882980. Its totient is φ = 34131456.

The previous prime is 68383729. The next prime is 68383781. The reversal of 68383732 is 23738386.

It can be written as a sum of positive squares in 2 ways, for example, as 65707236 + 2676496 = 8106^2 + 1636^2 .

It is a plaindrome in base 11.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12507 + ... + 17122.

Almost surely, 268383732 is an apocalyptic number.

It is an amenable number.

68383732 is a deficient number, since it is larger than the sum of its proper divisors (51499248).

68383732 is a wasteful number, since it uses less digits than its factorization.

68383732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30210 (or 30208 counting only the distinct ones).

The product of its digits is 145152, while the sum is 40.

The square root of 68383732 is about 8269.4456887992. The cubic root of 68383732 is about 408.9318458181.

The spelling of 68383732 in words is "sixty-eight million, three hundred eighty-three thousand, seven hundred thirty-two".

Divisors: 1 2 4 577 1154 2308 29629 59258 118516 17095933 34191866 68383732